diff --git a/README.md b/README.md
index 1377bec..afb055e 100644
--- a/README.md
+++ b/README.md
@@ -61,6 +61,11 @@ remove :: entity, fragment... -> boolean, boolean
 clear :: entity -> boolean, boolean
 destroy :: entity -> boolean, boolean
 
+multi_set :: entity, fragment[], component[]? -> boolean, boolean
+multi_assign :: entity, fragment[], component[]? -> boolean, boolean
+multi_insert :: entity, fragment[], component[]? -> boolean, boolean
+multi_remove :: entity, fragment[] -> boolean, boolean
+
 batch_set :: query, fragment, any... -> integer, boolean
 batch_assign :: query, fragment, any... -> integer, boolean
 batch_insert :: query, fragment, any... -> integer, boolean
diff --git a/develop/untests.lua b/develop/untests.lua
index 9088f8c..e1cbb97 100644
--- a/develop/untests.lua
+++ b/develop/untests.lua
@@ -2510,3 +2510,436 @@ do
         assert(entities[1] == e2)
     end
 end
+
+do
+    local f1, f2, f3 = evo.id(3)
+
+    do
+        local e = evo.id()
+        assert(not evo.multi_insert(e, {}))
+        assert(not evo.multi_insert(e, {}, {}))
+        assert(not evo.multi_insert(e, {}, { 41 }))
+        assert(evo.is_alive(e) and evo.is_empty(e))
+
+        assert(evo.multi_insert(e, { f1 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == true)
+
+        assert(not evo.multi_insert(e, { f1 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == true)
+
+        assert(evo.multi_insert(e, { f2 }, { 42, 43 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == true)
+        assert(evo.has(e, f2) and evo.get(e, f2) == 42)
+    end
+
+    do
+        local e = evo.id()
+        assert(evo.multi_insert(e, { f1, f2 }, { 41 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == 41)
+        assert(evo.has(e, f2) and evo.get(e, f2) == true)
+
+        assert(evo.multi_insert(e, { f1, f3 }, { 20, 43 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == 41)
+        assert(evo.has(e, f2) and evo.get(e, f2) == true)
+        assert(evo.has(e, f3) and evo.get(e, f3) == 43)
+    end
+end
+
+do
+    local f1, f2, f3 = evo.id(3)
+
+    do
+        local e1 = evo.id()
+        assert(evo.multi_insert(e1, { f1, f2 }, { 41, 42 }))
+        assert(evo.has(e1, f1) and evo.get(e1, f1) == 41)
+        assert(evo.has(e1, f2) and evo.get(e1, f2) == 42)
+
+        local e2 = evo.id()
+        assert(evo.multi_insert(e2, { f1, f2 }, { 43, 44 }))
+        assert(evo.has(e2, f1) and evo.get(e2, f1) == 43)
+        assert(evo.has(e2, f2) and evo.get(e2, f2) == 44)
+
+        assert(evo.multi_insert(e1, { f3 }))
+        do
+            local chunk, entities = evo.chunk(f1, f2)
+            assert(entities and #entities == 1 and entities[1] == e2)
+            assert(chunk and evo.select(chunk, f2)[1] == 44)
+        end
+    end
+
+    do
+        local e1, e2 = evo.id(2)
+        evo.defer()
+        do
+            evo.multi_insert(e1, { f1, f2 }, { 41, 42 })
+            evo.multi_insert(e2, { f2, f2 }, { 43, 44 })
+        end
+        assert(evo.is_alive(e1) and evo.is_empty(e1))
+        assert(evo.is_alive(e2) and evo.is_empty(e2))
+        assert(evo.commit())
+        assert(evo.has(e1, f1) and evo.get(e1, f1) == 41)
+        assert(evo.has(e1, f2) and evo.get(e1, f2) == 42)
+        assert(evo.has(e2, f2) and evo.get(e2, f2) == 44)
+    end
+end
+
+do
+    local f1, f2, f3 = evo.id(3)
+
+    evo.set(f3, evo.TAG)
+
+    local last_set_entity = 0
+    local last_set_component = 0
+
+    evo.set(f1, evo.ON_SET, function(e, f, c)
+        assert(f == f1)
+        last_set_entity = e
+        last_set_component = c
+    end)
+
+    evo.set(f2, evo.ON_SET, function(e, f, c)
+        assert(f == f2)
+        last_set_entity = e
+        last_set_component = c
+    end)
+
+    evo.set(f3, evo.ON_SET, function(e, f, c)
+        assert(f == f3)
+        last_set_entity = e
+        last_set_component = c
+    end)
+
+    do
+        local e = evo.id()
+        assert(evo.multi_insert(e, { f1, f2 }, { 41, 42 }))
+        assert(last_set_entity == e and last_set_component == 42)
+    end
+
+    do
+        local e = evo.id()
+        assert(evo.multi_insert(e, { f1, f2, f3 }, { 41, 42, 43 }))
+        assert(last_set_entity == e and last_set_component == nil)
+    end
+end
+
+do
+    local f1, f2, f3 = evo.id(3)
+
+    do
+        local e = evo.id()
+        assert(not evo.multi_assign(e, {}))
+        assert(not evo.multi_assign(e, {}, {}))
+        assert(not evo.multi_assign(e, {}, { 41 }))
+        assert(evo.is_alive(e) and evo.is_empty(e))
+
+        assert(evo.multi_insert(e, { f1 }, { 21 }))
+        assert(evo.multi_assign(e, { f1, f2 }, { 41, 42 }))
+        assert(not evo.multi_assign(e, { f2 }, { 42 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == 41)
+        assert(not evo.has(e, f2) and evo.get(e, f2) == nil)
+
+        assert(not evo.multi_assign(e, { f3 }, { 43 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == 41)
+        assert(not evo.has(e, f2) and evo.get(e, f2) == nil)
+        assert(not evo.has(e, f3) and evo.get(e, f3) == nil)
+
+        assert(evo.multi_insert(e, { f2 }, { 22 }))
+        assert(evo.multi_assign(e, { f2 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == 41)
+        assert(evo.has(e, f2) and evo.get(e, f2) == true)
+        assert(evo.multi_assign(e, { f2 }, { 42, 43 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == 41)
+        assert(evo.has(e, f2) and evo.get(e, f2) == 42)
+    end
+
+    do
+        local e1, e2 = evo.id(2)
+        evo.defer()
+        do
+            evo.multi_insert(e1, { f1, f2 }, { 21, 22 })
+            evo.multi_assign(e1, { f1, f2 }, { 41, 42 })
+
+            evo.multi_insert(e2, { f1, f2 }, { 31, 32 })
+            evo.multi_assign(e2, { f1, f2 }, { 51, 52 })
+        end
+        assert(evo.is_alive(e1) and evo.is_empty(e1))
+        assert(evo.is_alive(e2) and evo.is_empty(e2))
+        assert(evo.commit())
+        assert(evo.has(e1, f1) and evo.get(e1, f1) == 41)
+        assert(evo.has(e1, f2) and evo.get(e1, f2) == 42)
+        assert(evo.has(e2, f1) and evo.get(e2, f1) == 51)
+        assert(evo.has(e2, f2) and evo.get(e2, f2) == 52)
+    end
+end
+
+do
+    local f1, f2, f3 = evo.id(3)
+
+    evo.set(f3, evo.TAG)
+
+    local last_set_entity = 0
+    local last_set_component = 0
+
+    evo.set(f1, evo.ON_SET, function(e, f, c)
+        assert(f == f1)
+        last_set_entity = e
+        last_set_component = c
+    end)
+
+    evo.set(f2, evo.ON_SET, function(e, f, c)
+        assert(f == f2)
+        last_set_entity = e
+        last_set_component = c
+    end)
+
+    evo.set(f3, evo.ON_SET, function(e, f, c)
+        assert(f == f3)
+        last_set_entity = e
+        last_set_component = c
+    end)
+
+    do
+        local e = evo.id()
+        assert(not evo.multi_assign(e, { f1, f2 }, { 41, 42 }))
+        assert(last_set_entity == 0 and last_set_component == 0)
+
+        assert(evo.multi_insert(e, { f1, f2 }, { 21, 22 }))
+        assert(last_set_entity == e and last_set_component == 22)
+
+        assert(evo.multi_assign(e, { f1, f2 }, { 41, 42 }))
+        assert(last_set_entity == e and last_set_component == 42)
+    end
+
+    do
+        local e = evo.id()
+        assert(evo.multi_insert(e, { f1, f2, f3 }, { 21, 22, 23 }))
+        assert(last_set_entity == e and last_set_component == nil)
+
+        last_set_entity, last_set_component = 0, 0
+        assert(evo.multi_assign(e, { f1, f2, f3 }, { 41, 42, 43 }))
+        assert(last_set_entity == e and last_set_component == nil)
+        assert(evo.has(e, f1) and evo.get(e, f1) == 41)
+        assert(evo.has(e, f2) and evo.get(e, f2) == 42)
+        assert(evo.has(e, f3) and evo.get(e, f3) == nil)
+    end
+end
+
+do
+    local f1, f2, f3, f4 = evo.id(4)
+
+    evo.set(f3, evo.TAG)
+
+    do
+        local e = evo.id()
+        assert(evo.multi_insert(e, { f1, f2, f3 }, { 41, 42, 43 }))
+        assert(evo.has_all(e, f1, f2, f3))
+
+        assert(evo.multi_remove(e, {}))
+        assert(evo.multi_remove(e, { f4 }))
+        assert(evo.has_all(e, f1, f2, f3))
+
+        assert(evo.multi_remove(e, { f3 }))
+        assert(evo.has(e, f1) and evo.has(e, f2) and not evo.has(e, f3))
+        assert(evo.get(e, f1) == 41 and evo.get(e, f2) == 42 and evo.get(e, f3) == nil)
+
+        assert(evo.multi_remove(e, { f1, f2, f4 }))
+        assert(not evo.has_any(e, f1, f2, f3))
+        assert(evo.get(e, f1) == nil and evo.get(e, f2) == nil and evo.get(e, f3) == nil)
+    end
+
+    do
+        local e = evo.id()
+        assert(evo.multi_insert(e, { f1, f2, f3 }, { 41, 42, 43 }))
+        assert(evo.has_all(e, f1, f2, f3))
+        evo.defer()
+        evo.multi_remove(e, { f1, f2 })
+        assert(evo.has_all(e, f1, f2, f3))
+        assert(evo.commit())
+        assert(not evo.has(e, f1) and not evo.has(e, f2) and evo.has(e, f3))
+    end
+end
+
+do
+    local f1, f2, f3 = evo.id(3)
+
+    evo.set(f3, evo.TAG)
+
+    local last_remove_entity = 0
+    local last_remove_component = 0
+
+    evo.set(f1, evo.ON_REMOVE, function(e, f, c)
+        assert(f == f1)
+        last_remove_entity = e
+        last_remove_component = c
+    end)
+
+    evo.set(f2, evo.ON_REMOVE, function(e, f, c)
+        assert(f == f2)
+        last_remove_entity = e
+        last_remove_component = c
+    end)
+
+    evo.set(f3, evo.ON_REMOVE, function(e, f, c)
+        assert(f == f3)
+        last_remove_entity = e
+        last_remove_component = c
+    end)
+
+    do
+        local e = evo.id()
+        assert(evo.multi_remove(e, { f1, f2 }))
+        assert(last_remove_entity == 0 and last_remove_component == 0)
+
+        assert(evo.multi_insert(e, { f1, f2, f3 }, { 41, 42 }))
+        assert(last_remove_entity == 0 and last_remove_component == 0)
+        assert(evo.multi_remove(e, { f1, f2 }))
+        assert(last_remove_entity == e and last_remove_component == 42)
+        assert(evo.multi_remove(e, { f3 }))
+        assert(last_remove_entity == e and last_remove_component == nil)
+    end
+end
+
+do
+    local f1, f2, f3 = evo.id(3)
+
+    do
+        local e1, e2 = evo.id(2)
+        assert(evo.multi_insert(e1, { f1, f2, f3 }, { 41, 42, 43 }))
+        assert(evo.multi_insert(e2, { f1, f2, f3 }, { 44, 45, 46 }))
+
+        assert(evo.multi_remove(e1, { f1, f2 }))
+
+        do
+            local chunk, entities = evo.chunk(f1, f2, f3)
+            assert(entities and #entities == 1 and entities[1] == e2)
+            assert(chunk and evo.select(chunk, f2)[1] == 45)
+        end
+
+        do
+            local chunk, entities = evo.chunk(f3)
+            assert(entities and #entities == 1 and entities[1] == e1)
+            assert(chunk and evo.select(chunk, f3)[1] == 43)
+        end
+    end
+end
+
+do
+    local f1, f2, f3, f4 = evo.id(4)
+
+    evo.set(f3, evo.DEFAULT, 43)
+    evo.set(f4, evo.TAG)
+
+
+    do
+        local e = evo.id()
+        assert(not evo.multi_set(e, {}))
+        assert(not evo.multi_set(e, {}, {}))
+        assert(not evo.multi_set(e, {}, { 41 }))
+        assert(evo.is_alive(e) and evo.is_empty(e))
+
+        assert(evo.multi_set(e, { f1 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == true)
+
+        assert(evo.multi_set(e, { f1 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == true)
+
+        assert(evo.multi_set(e, { f1 }, { 41 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == 41)
+
+        assert(evo.multi_set(e, { f2 }, { 42 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == 41)
+        assert(evo.has(e, f2) and evo.get(e, f2) == 42)
+
+        assert(evo.multi_set(e, { f2 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == 41)
+        assert(evo.has(e, f2) and evo.get(e, f2) == true)
+
+        assert(evo.multi_set(e, { f2, f3 }, { 42 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == 41)
+        assert(evo.has(e, f2) and evo.get(e, f2) == 42)
+        assert(evo.has(e, f3) and evo.get(e, f3) == 43)
+
+        assert(evo.multi_set(e, { f3, f4 }, { 33, 44 }))
+        assert(evo.has(e, f1) and evo.get(e, f1) == 41)
+        assert(evo.has(e, f2) and evo.get(e, f2) == 42)
+        assert(evo.has(e, f3) and evo.get(e, f3) == 33)
+        assert(evo.has(e, f4) and evo.get(e, f4) == nil)
+    end
+end
+
+do
+    local f1, f2, f3 = evo.id(3)
+
+    evo.set(f2, evo.DEFAULT, 42)
+    evo.set(f3, evo.TAG)
+
+    local last_assign_entity = 0
+    local last_assign_new_component = 0
+    local last_assign_old_component = 0
+
+    evo.set(f1, evo.ON_ASSIGN, function(e, f, nc, oc)
+        assert(f == f1)
+        last_assign_entity = e
+        last_assign_new_component = nc
+        last_assign_old_component = oc
+    end)
+
+    evo.set(f2, evo.ON_ASSIGN, function(e, f, nc, oc)
+        assert(f == f2)
+        last_assign_entity = e
+        last_assign_new_component = nc
+        last_assign_old_component = oc
+    end)
+
+    evo.set(f3, evo.ON_ASSIGN, function(e, f, nc, oc)
+        assert(f == f3)
+        last_assign_entity = e
+        last_assign_new_component = nc
+        last_assign_old_component = oc
+    end)
+
+    local last_insert_entity = 0
+    local last_insert_component = 0
+
+    evo.set(f1, evo.ON_INSERT, function(e, f, nc)
+        assert(f == f1)
+        last_insert_entity = e
+        last_insert_component = nc
+    end)
+
+    evo.set(f2, evo.ON_INSERT, function(e, f, nc)
+        assert(f == f2)
+        last_insert_entity = e
+        last_insert_component = nc
+    end)
+
+    evo.set(f3, evo.ON_INSERT, function(e, f, nc)
+        assert(f == f3)
+        last_insert_entity = e
+        last_insert_component = nc
+    end)
+
+    do
+        last_assign_entity, last_assign_old_component, last_assign_new_component = 0, 0, 0
+        last_insert_entity, last_insert_component = 0, 0
+
+        local e = evo.id()
+        assert(evo.multi_set(e, { f1 }))
+        assert(last_assign_entity == 0 and last_assign_old_component == 0 and last_assign_new_component == 0)
+        assert(last_insert_entity == e and last_insert_component == true)
+
+        last_assign_entity, last_assign_old_component, last_assign_new_component = 0, 0, 0
+        last_insert_entity, last_insert_component = 0, 0
+
+        assert(evo.multi_set(e, { f1 }, { 41 }))
+        assert(last_assign_entity == e and last_assign_old_component == true and last_assign_new_component == 41)
+        assert(last_insert_entity == 0 and last_insert_component == 0)
+
+        last_assign_entity, last_assign_old_component, last_assign_new_component = 0, 0, 0
+        last_insert_entity, last_insert_component = 0, 0
+
+        assert(evo.multi_set(e, { f1, f2 }, { 11 }))
+        assert(last_assign_entity == e and last_assign_old_component == 41 and last_assign_new_component == 11)
+        assert(last_insert_entity == e and last_insert_component == 42)
+    end
+end
diff --git a/evolved.lua b/evolved.lua
index b06767a..093a732 100644
--- a/evolved.lua
+++ b/evolved.lua
@@ -369,6 +369,11 @@ local __EMPTY_FRAGMENT_LIST = setmetatable({}, {
     __newindex = function() error('attempt to modify empty fragment list') end
 })
 
+---@type evolved.component[]
+local __EMPTY_COMPONENT_LIST = setmetatable({}, {
+    __newindex = function() error('attempt to modify empty component list') end
+})
+
 ---@type evolved.component[]
 local __EMPTY_COMPONENT_STORAGE = setmetatable({}, {
     __newindex = function() error('attempt to modify empty component storage') end
@@ -644,6 +649,25 @@ local function __chunk_with_fragment(parent_chunk, child_fragment)
     return child_chunk
 end
 
+---@param chunk? evolved.chunk
+---@param fragment_list evolved.fragment[]
+---@return evolved.chunk?
+---@nodiscard
+local function __chunk_with_fragment_list(chunk, fragment_list)
+    local fragment_count = #fragment_list
+
+    if fragment_count == 0 then
+        return chunk
+    end
+
+    for i = 1, fragment_count do
+        local fragment = fragment_list[i]
+        chunk = __chunk_with_fragment(chunk, fragment)
+    end
+
+    return chunk
+end
+
 ---@param chunk? evolved.chunk
 ---@param fragment evolved.fragment
 ---@return evolved.chunk?
@@ -699,6 +723,25 @@ local function __chunk_without_fragments(chunk, ...)
     return chunk
 end
 
+---@param chunk? evolved.chunk
+---@param fragment_list evolved.fragment[]
+---@return evolved.chunk?
+---@nodiscard
+local function __chunk_without_fragment_list(chunk, fragment_list)
+    local fragment_count = #fragment_list
+
+    if fragment_count == 0 then
+        return chunk
+    end
+
+    for i = 1, fragment_count do
+        local fragment = fragment_list[i]
+        chunk = __chunk_without_fragment(chunk, fragment)
+    end
+
+    return chunk
+end
+
 ---
 ---
 ---
@@ -955,8 +998,8 @@ local function __chunk_insert(chunk, fragment, ...)
             local old_f = old_component_fragments[i]
             local old_cs = old_component_storages[i]
             local new_ci = new_component_indices[old_f]
-            local new_cs = new_component_storages[new_ci]
-            if new_cs then
+            if new_ci then
+                local new_cs = new_component_storages[new_ci]
                 __table_move(old_cs, 1, old_size, new_size + 1, new_cs)
             end
         end
@@ -1098,8 +1141,8 @@ local function __chunk_remove(chunk, ...)
             local new_f = new_component_fragments[i]
             local new_cs = new_component_storages[i]
             local old_ci = old_component_indices[new_f]
-            local old_cs = old_component_storages[old_ci]
-            if old_cs then
+            if old_ci then
+                local old_cs = old_component_storages[old_ci]
                 __table_move(old_cs, 1, old_size, new_size + 1, new_cs)
             end
         end
@@ -1305,12 +1348,18 @@ local __defer_op = {
     remove = 4,
     clear = 5,
     destroy = 6,
-    batch_set = 7,
-    batch_assign = 8,
-    batch_insert = 9,
-    batch_remove = 10,
-    batch_clear = 11,
-    batch_destroy = 12,
+
+    multi_set = 7,
+    multi_assign = 8,
+    multi_insert = 9,
+    multi_remove = 10,
+
+    batch_set = 11,
+    batch_assign = 12,
+    batch_insert = 13,
+    batch_remove = 14,
+    batch_clear = 15,
+    batch_destroy = 16,
 }
 
 ---@type table<evolved.defer_op, fun(bytes: any[], index: integer): integer>
@@ -1352,6 +1401,40 @@ local __defer_ops = {
         evolved.destroy(entity)
         return 1
     end,
+    [__defer_op.multi_set] = function(bytes, index)
+        local entity = bytes[index + 0]
+        local fragments = bytes[index + 1]
+        local components = bytes[index + 2]
+        evolved.multi_set(entity, fragments, components)
+        __release_table(__TABLE_POOL_TAG__FRAGMENT_LIST, fragments)
+        __release_table(__TABLE_POOL_TAG__COMPONENT_LIST, components)
+        return 3
+    end,
+    [__defer_op.multi_assign] = function(bytes, index)
+        local entity = bytes[index + 0]
+        local fragments = bytes[index + 1]
+        local components = bytes[index + 2]
+        evolved.multi_assign(entity, fragments, components)
+        __release_table(__TABLE_POOL_TAG__FRAGMENT_LIST, fragments)
+        __release_table(__TABLE_POOL_TAG__COMPONENT_LIST, components)
+        return 3
+    end,
+    [__defer_op.multi_insert] = function(bytes, index)
+        local entity = bytes[index + 0]
+        local fragments = bytes[index + 1]
+        local components = bytes[index + 2]
+        evolved.multi_insert(entity, fragments, components)
+        __release_table(__TABLE_POOL_TAG__FRAGMENT_LIST, fragments)
+        __release_table(__TABLE_POOL_TAG__COMPONENT_LIST, components)
+        return 3
+    end,
+    [__defer_op.multi_remove] = function(bytes, index)
+        local entity = bytes[index + 0]
+        local fragments = bytes[index + 1]
+        evolved.multi_remove(entity, fragments)
+        __release_table(__TABLE_POOL_TAG__FRAGMENT_LIST, fragments)
+        return 2
+    end,
     [__defer_op.batch_set] = function(bytes, index)
         local query = bytes[index + 0]
         local fragment = bytes[index + 1]
@@ -1534,6 +1617,92 @@ local function __defer_destroy(entity)
     __defer_length = length + 2
 end
 
+---@param entity evolved.entity
+---@param fragments evolved.fragment[]
+---@param components any[]
+local function __defer_multi_set(entity, fragments, components)
+    local fragment_count = #fragments
+    local fragment_list = __acquire_table(__TABLE_POOL_TAG__FRAGMENT_LIST, fragment_count, 0)
+    __table_move(fragments, 1, fragment_count, 1, fragment_list)
+
+    local component_count = #components
+    local component_list = __acquire_table(__TABLE_POOL_TAG__COMPONENT_LIST, component_count, 0)
+    __table_move(components, 1, component_count, 1, component_list)
+
+    local length = __defer_length
+    local bytecode = __defer_bytecode
+
+    bytecode[length + 1] = __defer_op.multi_set
+    bytecode[length + 2] = entity
+    bytecode[length + 3] = fragment_list
+    bytecode[length + 4] = component_list
+
+    __defer_length = length + 4
+end
+
+---@param entity evolved.entity
+---@param fragments evolved.fragment[]
+---@param components any[]
+local function __defer_multi_assign(entity, fragments, components)
+    local fragment_count = #fragments
+    local fragment_list = __acquire_table(__TABLE_POOL_TAG__FRAGMENT_LIST, fragment_count, 0)
+    __table_move(fragments, 1, fragment_count, 1, fragment_list)
+
+    local component_count = #components
+    local component_list = __acquire_table(__TABLE_POOL_TAG__COMPONENT_LIST, component_count, 0)
+    __table_move(components, 1, component_count, 1, component_list)
+
+    local length = __defer_length
+    local bytecode = __defer_bytecode
+
+    bytecode[length + 1] = __defer_op.multi_assign
+    bytecode[length + 2] = entity
+    bytecode[length + 3] = fragment_list
+    bytecode[length + 4] = component_list
+
+    __defer_length = length + 4
+end
+
+---@param entity evolved.entity
+---@param fragments evolved.fragment[]
+---@param components any[]
+local function __defer_multi_insert(entity, fragments, components)
+    local fragment_count = #fragments
+    local fragment_list = __acquire_table(__TABLE_POOL_TAG__FRAGMENT_LIST, fragment_count, 0)
+    __table_move(fragments, 1, fragment_count, 1, fragment_list)
+
+    local component_count = #components
+    local component_list = __acquire_table(__TABLE_POOL_TAG__COMPONENT_LIST, component_count, 0)
+    __table_move(components, 1, component_count, 1, component_list)
+
+    local length = __defer_length
+    local bytecode = __defer_bytecode
+
+    bytecode[length + 1] = __defer_op.multi_insert
+    bytecode[length + 2] = entity
+    bytecode[length + 3] = fragment_list
+    bytecode[length + 4] = component_list
+
+    __defer_length = length + 4
+end
+
+---@param entity evolved.entity
+---@param fragments evolved.fragment[]
+local function __defer_multi_remove(entity, fragments)
+    local fragment_count = #fragments
+    local fragment_list = __acquire_table(__TABLE_POOL_TAG__FRAGMENT_LIST, fragment_count, 0)
+    __table_move(fragments, 1, fragment_count, 1, fragment_list)
+
+    local length = __defer_length
+    local bytecode = __defer_bytecode
+
+    bytecode[length + 1] = __defer_op.multi_remove
+    bytecode[length + 2] = entity
+    bytecode[length + 3] = fragment_list
+
+    __defer_length = length + 3
+end
+
 ---@param query evolved.query
 ---@param fragment evolved.fragment
 ---@param ... any component arguments
@@ -1834,6 +2003,12 @@ function evolved.set(entity, fragment, ...)
 
     local new_chunk = __chunk_with_fragment(old_chunk, fragment)
 
+    if not new_chunk then
+        return false, false
+    end
+
+    __defer()
+
     if old_chunk == new_chunk then
         local old_component_indices = old_chunk.__component_indices
         local old_component_storages = old_chunk.__component_storages
@@ -1867,12 +2042,7 @@ function evolved.set(entity, fragment, ...)
                 __fragment_call_set_and_assign_hooks(entity, fragment)
             end
         end
-
-        return true, false
-    end
-
-    __defer()
-    do
+    else
         local new_entities = new_chunk.__entities
         local new_component_indices = new_chunk.__component_indices
         local new_component_storages = new_chunk.__component_storages
@@ -1880,6 +2050,23 @@ function evolved.set(entity, fragment, ...)
         local new_place = #new_entities + 1
         new_entities[new_place] = entity
 
+        if old_chunk then
+            local old_component_storages = old_chunk.__component_storages
+            local old_component_fragments = old_chunk.__component_fragments
+
+            for i = 1, #old_component_fragments do
+                local old_f = old_component_fragments[i]
+                local old_cs = old_component_storages[i]
+                local new_ci = new_component_indices[old_f]
+                if new_ci then
+                    local new_cs = new_component_storages[new_ci]
+                    new_cs[new_place] = old_cs[old_place]
+                end
+            end
+
+            __detach_entity(entity)
+        end
+
         do
             local new_component_index = new_component_indices[fragment]
 
@@ -1911,28 +2098,12 @@ function evolved.set(entity, fragment, ...)
             end
         end
 
-        if old_chunk then
-            local old_component_storages = old_chunk.__component_storages
-            local old_component_fragments = old_chunk.__component_fragments
-
-            for i = 1, #old_component_fragments do
-                local old_f = old_component_fragments[i]
-                local old_cs = old_component_storages[i]
-                local new_ci = new_component_indices[old_f]
-                local new_cs = new_component_storages[new_ci]
-                if new_cs then
-                    new_cs[new_place] = old_cs[old_place]
-                end
-            end
-
-            __detach_entity(entity)
-        end
-
         __entity_chunks[entity_index] = new_chunk
         __entity_places[entity_index] = new_place
 
         __structural_changes = __structural_changes + 1
     end
+
     __defer_commit()
     return true, false
 end
@@ -1961,6 +2132,8 @@ function evolved.assign(entity, fragment, ...)
         return false, false
     end
 
+    __defer()
+
     do
         local component_indices = chunk.__component_indices
         local component_storages = chunk.__component_storages
@@ -1996,6 +2169,7 @@ function evolved.assign(entity, fragment, ...)
         end
     end
 
+    __defer_commit()
     return true, false
 end
 
@@ -2021,11 +2195,12 @@ function evolved.insert(entity, fragment, ...)
 
     local new_chunk = __chunk_with_fragment(old_chunk, fragment)
 
-    if old_chunk == new_chunk then
+    if not new_chunk or old_chunk == new_chunk then
         return false, false
     end
 
     __defer()
+
     do
         local new_entities = new_chunk.__entities
         local new_component_indices = new_chunk.__component_indices
@@ -2034,6 +2209,23 @@ function evolved.insert(entity, fragment, ...)
         local new_place = #new_entities + 1
         new_entities[new_place] = entity
 
+        if old_chunk then
+            local old_component_storages = old_chunk.__component_storages
+            local old_component_fragments = old_chunk.__component_fragments
+
+            for i = 1, #old_component_fragments do
+                local old_f = old_component_fragments[i]
+                local old_cs = old_component_storages[i]
+                local new_ci = new_component_indices[old_f]
+                if new_ci then
+                    local new_cs = new_component_storages[new_ci]
+                    new_cs[new_place] = old_cs[old_place]
+                end
+            end
+
+            __detach_entity(entity)
+        end
+
         do
             local new_component_index = new_component_indices[fragment]
 
@@ -2065,28 +2257,12 @@ function evolved.insert(entity, fragment, ...)
             end
         end
 
-        if old_chunk then
-            local old_component_storages = old_chunk.__component_storages
-            local old_component_fragments = old_chunk.__component_fragments
-
-            for i = 1, #old_component_fragments do
-                local old_f = old_component_fragments[i]
-                local old_cs = old_component_storages[i]
-                local new_ci = new_component_indices[old_f]
-                local new_cs = new_component_storages[new_ci]
-                if new_cs then
-                    new_cs[new_place] = old_cs[old_place]
-                end
-            end
-
-            __detach_entity(entity)
-        end
-
         __entity_chunks[entity_index] = new_chunk
         __entity_places[entity_index] = new_place
 
         __structural_changes = __structural_changes + 1
     end
+
     __defer_commit()
     return true, false
 end
@@ -2117,6 +2293,7 @@ function evolved.remove(entity, ...)
     end
 
     __defer()
+
     do
         local old_fragment_set = old_chunk.__fragment_set
         local old_component_indices = old_chunk.__component_indices
@@ -2150,8 +2327,8 @@ function evolved.remove(entity, ...)
                 local new_f = new_component_fragments[i]
                 local new_cs = new_component_storages[i]
                 local old_ci = old_component_indices[new_f]
-                local old_cs = old_component_storages[old_ci]
-                if old_cs then
+                if old_ci then
+                    local old_cs = old_component_storages[old_ci]
                     new_cs[new_place] = old_cs[old_place]
                 end
             end
@@ -2166,6 +2343,7 @@ function evolved.remove(entity, ...)
 
         __structural_changes = __structural_changes + 1
     end
+
     __defer_commit()
     return true, false
 end
@@ -2193,6 +2371,7 @@ function evolved.clear(entity)
     end
 
     __defer()
+
     do
         local fragment_list = chunk.__fragment_list
         local component_indices = chunk.__component_indices
@@ -2216,6 +2395,7 @@ function evolved.clear(entity)
 
         __structural_changes = __structural_changes + 1
     end
+
     __defer_commit()
     return true, false
 end
@@ -2244,6 +2424,7 @@ function evolved.destroy(entity)
     end
 
     __defer()
+
     do
         local fragment_list = chunk.__fragment_list
         local component_indices = chunk.__component_indices
@@ -2268,6 +2449,477 @@ function evolved.destroy(entity)
 
         __structural_changes = __structural_changes + 1
     end
+
+    __defer_commit()
+    return true, false
+end
+
+---@param entity evolved.entity
+---@param fragments evolved.fragment[]
+---@param components? any[]
+---@return boolean is_any_set
+---@return boolean is_deferred
+function evolved.multi_set(entity, fragments, components)
+    local fragment_count = #fragments
+
+    if fragment_count == 0 then
+        return false, false
+    end
+
+    if not components then
+        components = __EMPTY_COMPONENT_LIST
+    end
+
+    if __defer_depth > 0 then
+        __defer_multi_set(entity, fragments, components)
+        return false, true
+    end
+
+    local entity_index = entity % 0x100000
+
+    if __freelist_ids[entity_index] ~= entity then
+        return false, false
+    end
+
+    local old_chunk = __entity_chunks[entity_index]
+    local old_place = __entity_places[entity_index]
+
+    local new_chunk = __chunk_with_fragment_list(old_chunk, fragments)
+
+    if not new_chunk then
+        return false, false
+    end
+
+    __defer()
+
+    if old_chunk == new_chunk then
+        local old_fragment_set = old_chunk.__fragment_set
+        local old_component_indices = old_chunk.__component_indices
+        local old_component_storages = old_chunk.__component_storages
+
+        for i = 1, fragment_count do
+            local fragment = fragments[i]
+            if old_fragment_set[fragment] then
+                local old_component_index = old_component_indices[fragment]
+
+                if old_component_index then
+                    local old_component_storage = old_component_storages[old_component_index]
+                    local old_component = old_component_storage[old_place]
+
+                    if old_chunk.__has_defaults_or_constructs then
+                        local new_component = components[i]
+
+                        if new_component == nil then new_component = evolved.get(fragment, evolved.DEFAULT) end
+                        if new_component == nil then new_component = true end
+
+                        old_component_storage[old_place] = new_component
+
+                        if old_chunk.__has_set_or_assign_hooks then
+                            __fragment_call_set_and_assign_hooks(entity, fragment, new_component, old_component)
+                        end
+                    else
+                        local new_component = components[i]
+                        if new_component == nil then new_component = true end
+
+                        old_component_storage[old_place] = new_component
+
+                        if old_chunk.__has_set_or_assign_hooks then
+                            __fragment_call_set_and_assign_hooks(entity, fragment, new_component, old_component)
+                        end
+                    end
+                else
+                    if old_chunk.__has_set_or_assign_hooks then
+                        __fragment_call_set_and_assign_hooks(entity, fragment)
+                    end
+                end
+            end
+        end
+    else
+        local new_entities = new_chunk.__entities
+        local new_component_indices = new_chunk.__component_indices
+        local new_component_storages = new_chunk.__component_storages
+
+        local old_fragment_set = old_chunk and old_chunk.__fragment_set or __EMPTY_FRAGMENT_SET
+
+        local new_place = #new_entities + 1
+        new_entities[new_place] = entity
+
+        if old_chunk then
+            local old_component_storages = old_chunk.__component_storages
+            local old_component_fragments = old_chunk.__component_fragments
+
+            for i = 1, #old_component_fragments do
+                local old_f = old_component_fragments[i]
+                local old_cs = old_component_storages[i]
+                local new_ci = new_component_indices[old_f]
+                if new_ci then
+                    local new_cs = new_component_storages[new_ci]
+                    new_cs[new_place] = old_cs[old_place]
+                end
+            end
+
+            __detach_entity(entity)
+        end
+
+        for i = 1, fragment_count do
+            local fragment = fragments[i]
+            if old_fragment_set[fragment] then
+                local new_component_index = new_component_indices[fragment]
+
+                if new_component_index then
+                    local new_component_storage = new_component_storages[new_component_index]
+                    local old_component = new_component_storage[new_place]
+
+                    if new_chunk.__has_defaults_or_constructs then
+                        local new_component = components[i]
+
+                        if new_component == nil then new_component = evolved.get(fragment, evolved.DEFAULT) end
+                        if new_component == nil then new_component = true end
+
+                        new_component_storage[new_place] = new_component
+
+                        if new_chunk.__has_set_or_assign_hooks then
+                            __fragment_call_set_and_assign_hooks(entity, fragment, new_component, old_component)
+                        end
+                    else
+                        local new_component = components[i]
+                        if new_component == nil then new_component = true end
+
+                        new_component_storage[new_place] = new_component
+
+                        if new_chunk.__has_set_or_assign_hooks then
+                            __fragment_call_set_and_assign_hooks(entity, fragment, new_component, old_component)
+                        end
+                    end
+                else
+                    if new_chunk.__has_set_or_assign_hooks then
+                        __fragment_call_set_and_assign_hooks(entity, fragment)
+                    end
+                end
+            else
+                local new_component_index = new_component_indices[fragment]
+
+                if new_component_index then
+                    local new_component_storage = new_component_storages[new_component_index]
+
+                    if new_chunk.__has_defaults_or_constructs then
+                        local new_component = components[i]
+
+                        if new_component == nil then new_component = evolved.get(fragment, evolved.DEFAULT) end
+                        if new_component == nil then new_component = true end
+
+                        new_component_storage[new_place] = new_component
+
+                        if new_chunk.__has_set_or_insert_hooks then
+                            __fragment_call_set_and_insert_hooks(entity, fragment, new_component)
+                        end
+                    else
+                        local new_component = components[i]
+                        if new_component == nil then new_component = true end
+
+                        new_component_storage[new_place] = new_component
+
+                        if new_chunk.__has_set_or_insert_hooks then
+                            __fragment_call_set_and_insert_hooks(entity, fragment, new_component)
+                        end
+                    end
+                else
+                    if new_chunk.__has_set_or_insert_hooks then
+                        __fragment_call_set_and_insert_hooks(entity, fragment)
+                    end
+                end
+            end
+        end
+
+        __entity_chunks[entity_index] = new_chunk
+        __entity_places[entity_index] = new_place
+
+        __structural_changes = __structural_changes + 1
+    end
+
+    __defer_commit()
+    return true, false
+end
+
+---@param entity evolved.entity
+---@param fragments evolved.fragment[]
+---@param components? any[]
+---@return boolean is_any_assigned
+---@return boolean is_deferred
+function evolved.multi_assign(entity, fragments, components)
+    local fragment_count = #fragments
+
+    if fragment_count == 0 then
+        return false, false
+    end
+
+    if not components then
+        components = __EMPTY_COMPONENT_LIST
+    end
+
+    if __defer_depth > 0 then
+        __defer_multi_assign(entity, fragments, components)
+        return false, true
+    end
+
+    local entity_index = entity % 0x100000
+
+    if __freelist_ids[entity_index] ~= entity then
+        return false, false
+    end
+
+    local chunk = __entity_chunks[entity_index]
+    local place = __entity_places[entity_index]
+
+    if not chunk or not __chunk_has_any_fragment_list(chunk, fragments) then
+        return false, false
+    end
+
+    __defer()
+
+    do
+        local fragment_set = chunk.__fragment_set
+        local component_indices = chunk.__component_indices
+        local component_storages = chunk.__component_storages
+
+        for i = 1, fragment_count do
+            local fragment = fragments[i]
+            if fragment_set[fragment] then
+                local component_index = component_indices[fragment]
+
+                if component_index then
+                    local component_storage = component_storages[component_index]
+                    local old_component = component_storage[place]
+
+                    if chunk.__has_defaults_or_constructs then
+                        local new_component = components[i]
+
+                        if new_component == nil then new_component = evolved.get(fragment, evolved.DEFAULT) end
+                        if new_component == nil then new_component = true end
+
+                        component_storage[place] = new_component
+
+                        if chunk.__has_set_or_assign_hooks then
+                            __fragment_call_set_and_assign_hooks(entity, fragment, new_component, old_component)
+                        end
+                    else
+                        local new_component = components[i]
+                        if new_component == nil then new_component = true end
+
+                        component_storage[place] = new_component
+
+                        if chunk.__has_set_or_assign_hooks then
+                            __fragment_call_set_and_assign_hooks(entity, fragment, new_component, old_component)
+                        end
+                    end
+                else
+                    if chunk.__has_set_or_assign_hooks then
+                        __fragment_call_set_and_assign_hooks(entity, fragment)
+                    end
+                end
+            end
+        end
+    end
+
+    __defer_commit()
+    return true, false
+end
+
+---@param entity evolved.entity
+---@param fragments evolved.fragment[]
+---@param components? any[]
+---@return boolean is_any_inserted
+---@return boolean is_deferred
+function evolved.multi_insert(entity, fragments, components)
+    local fragment_count = #fragments
+
+    if fragment_count == 0 then
+        return false, false
+    end
+
+    if not components then
+        components = __EMPTY_COMPONENT_LIST
+    end
+
+    if __defer_depth > 0 then
+        __defer_multi_insert(entity, fragments, components)
+        return false, true
+    end
+
+    local entity_index = entity % 0x100000
+
+    if __freelist_ids[entity_index] ~= entity then
+        return false, false
+    end
+
+    local old_chunk = __entity_chunks[entity_index]
+    local old_place = __entity_places[entity_index]
+
+    local new_chunk = __chunk_with_fragment_list(old_chunk, fragments)
+
+    if not new_chunk or old_chunk == new_chunk then
+        return false, false
+    end
+
+    __defer()
+
+    do
+        local new_entities = new_chunk.__entities
+        local new_component_indices = new_chunk.__component_indices
+        local new_component_storages = new_chunk.__component_storages
+
+        local old_fragment_set = old_chunk and old_chunk.__fragment_set or __EMPTY_FRAGMENT_SET
+
+        local new_place = #new_entities + 1
+        new_entities[new_place] = entity
+
+        if old_chunk then
+            local old_component_storages = old_chunk.__component_storages
+            local old_component_fragments = old_chunk.__component_fragments
+
+            for i = 1, #old_component_fragments do
+                local old_f = old_component_fragments[i]
+                local old_cs = old_component_storages[i]
+                local new_ci = new_component_indices[old_f]
+                if new_ci then
+                    local new_cs = new_component_storages[new_ci]
+                    new_cs[new_place] = old_cs[old_place]
+                end
+            end
+
+            __detach_entity(entity)
+        end
+
+        for i = 1, fragment_count do
+            local fragment = fragments[i]
+            if not old_fragment_set[fragment] then
+                local new_component_index = new_component_indices[fragment]
+
+                if new_component_index then
+                    local new_component_storage = new_component_storages[new_component_index]
+
+                    if new_chunk.__has_defaults_or_constructs then
+                        local new_component = components[i]
+
+                        if new_component == nil then new_component = evolved.get(fragment, evolved.DEFAULT) end
+                        if new_component == nil then new_component = true end
+
+                        new_component_storage[new_place] = new_component
+
+                        if new_chunk.__has_set_or_insert_hooks then
+                            __fragment_call_set_and_insert_hooks(entity, fragment, new_component)
+                        end
+                    else
+                        local new_component = components[i]
+                        if new_component == nil then new_component = true end
+
+                        new_component_storage[new_place] = new_component
+
+                        if new_chunk.__has_set_or_insert_hooks then
+                            __fragment_call_set_and_insert_hooks(entity, fragment, new_component)
+                        end
+                    end
+                else
+                    if new_chunk.__has_set_or_insert_hooks then
+                        __fragment_call_set_and_insert_hooks(entity, fragment)
+                    end
+                end
+            end
+        end
+
+        __entity_chunks[entity_index] = new_chunk
+        __entity_places[entity_index] = new_place
+
+        __structural_changes = __structural_changes + 1
+    end
+
+    __defer_commit()
+    return true, false
+end
+
+---@param entity evolved.entity
+---@param fragments evolved.fragment[]
+---@return boolean is_all_removed
+---@return boolean is_deferred
+function evolved.multi_remove(entity, fragments)
+    local fragment_count = #fragments
+
+    if fragment_count == 0 then
+        return true, false
+    end
+
+    if __defer_depth > 0 then
+        __defer_multi_remove(entity, fragments)
+        return false, true
+    end
+
+    local entity_index = entity % 0x100000
+
+    if __freelist_ids[entity_index] ~= entity then
+        return false, false
+    end
+
+    local old_chunk = __entity_chunks[entity_index]
+    local old_place = __entity_places[entity_index]
+
+    local new_chunk = __chunk_without_fragment_list(old_chunk, fragments)
+
+    if old_chunk == new_chunk then
+        return true, false
+    end
+
+    __defer()
+
+    do
+        local old_fragment_set = old_chunk.__fragment_set
+        local old_component_indices = old_chunk.__component_indices
+        local old_component_storages = old_chunk.__component_storages
+
+        if old_chunk.__has_remove_hooks then
+            for i = 1, fragment_count do
+                local fragment = fragments[i]
+                if old_fragment_set[fragment] then
+                    local old_component_index = old_component_indices[fragment]
+                    if old_component_index then
+                        local old_component_storage = old_component_storages[old_component_index]
+                        local old_component = old_component_storage[old_place]
+                        __fragment_call_remove_hook(entity, fragment, old_component)
+                    else
+                        __fragment_call_remove_hook(entity, fragment)
+                    end
+                end
+            end
+        end
+
+        if new_chunk then
+            local new_entities = new_chunk.__entities
+            local new_component_storages = new_chunk.__component_storages
+            local new_component_fragments = new_chunk.__component_fragments
+
+            local new_place = #new_entities + 1
+            new_entities[new_place] = entity
+
+            for i = 1, #new_component_fragments do
+                local new_f = new_component_fragments[i]
+                local new_cs = new_component_storages[i]
+                local old_ci = old_component_indices[new_f]
+                if old_ci then
+                    local old_cs = old_component_storages[old_ci]
+                    new_cs[new_place] = old_cs[old_place]
+                end
+            end
+
+            __detach_entity(entity)
+
+            __entity_chunks[entity_index] = new_chunk
+            __entity_places[entity_index] = new_place
+        else
+            __detach_entity(entity)
+        end
+
+        __structural_changes = __structural_changes + 1
+    end
+
     __defer_commit()
     return true, false
 end