diff --git a/data/uking_functions.csv b/data/uking_functions.csv
index d3482042..88869d69 100644
--- a/data/uking_functions.csv
+++ b/data/uking_functions.csv
@@ -52771,10 +52771,10 @@
 0x0000007100897644,SceneMgr::setWarpDLCDestPosAndDegree,52,
 0x0000007100897678,sub_7100897678,100,
 0x00000071008976dc,sub_71008976DC,108,
-0x0000007100897748,ActorHeapUtil::createInstance,148,
-0x00000071008977dc,ActorHeapUtil::deleteInstance,88,
-0x0000007100897834,ActorHeapUtil::dtor,4,
-0x0000007100897838,ActorHeapUtil::dtorDelete,4,
+0x0000007100897748,ActorHeapUtil::createInstance,148,_ZN4ksys3act13ActorHeapUtil14createInstanceEPN4sead4HeapE
+0x00000071008977dc,ActorHeapUtil::deleteInstance,88,_ZN4ksys3act13ActorHeapUtil14deleteInstanceEv
+0x0000007100897834,ActorHeapUtil::dtor,4,_ZN4ksys3act13ActorHeapUtilD1Ev
+0x0000007100897838,ActorHeapUtil::dtorDelete,4,_ZN4ksys3act13ActorHeapUtilD0Ev
 0x000000710089783c,StageSelectData::callSomeFnOnMemberx28,12,
 0x0000007100897848,StageSelectData::callSomeFnOnMemberx28_b,20,
 0x000000710089785c,sub_710089785C,140,
diff --git a/src/KingSystem/ActorSystem/CMakeLists.txt b/src/KingSystem/ActorSystem/CMakeLists.txt
index 464cb97b..eb4318aa 100644
--- a/src/KingSystem/ActorSystem/CMakeLists.txt
+++ b/src/KingSystem/ActorSystem/CMakeLists.txt
@@ -11,6 +11,8 @@ target_sources(uking PRIVATE
   actActorCreator.h
   actActorFactory.cpp
   actActorFactory.h
+  actActorHeapUtil.cpp
+  actActorHeapUtil.h
   actActorLinkConstDataAccess.cpp
   actActorLinkConstDataAccess.h
   actActorParam.cpp
diff --git a/src/KingSystem/ActorSystem/actActorHeapUtil.cpp b/src/KingSystem/ActorSystem/actActorHeapUtil.cpp
new file mode 100644
index 00000000..4aa0a1f9
--- /dev/null
+++ b/src/KingSystem/ActorSystem/actActorHeapUtil.cpp
@@ -0,0 +1,9 @@
+#include "KingSystem/ActorSystem/actActorHeapUtil.h"
+
+namespace ksys::act {
+
+SEAD_SINGLETON_DISPOSER_IMPL(ActorHeapUtil)
+
+ActorHeapUtil::~ActorHeapUtil() = default;
+
+}  // namespace ksys::act
diff --git a/src/KingSystem/ActorSystem/actActorHeapUtil.h b/src/KingSystem/ActorSystem/actActorHeapUtil.h
new file mode 100644
index 00000000..dcf9e887
--- /dev/null
+++ b/src/KingSystem/ActorSystem/actActorHeapUtil.h
@@ -0,0 +1,25 @@
+#pragma once
+
+#include <heap/seadDisposer.h>
+
+namespace ksys::act {
+
+class ActorHeapUtil {
+    SEAD_SINGLETON_DISPOSER(ActorHeapUtil)
+    ActorHeapUtil() = default;
+    virtual ~ActorHeapUtil();
+
+public:
+    sead::Heap* getBaseProcHeap() const { return mBaseProcHeap; }
+    void setBaseProcHeap(sead::Heap* heap) { mBaseProcHeap = heap; }
+
+    sead::Heap* getMemoryResidentActorHeap() const { return mMemoryResidentActorHeap; }
+    void setMemoryResidentActorHeap(sead::Heap* heap) { mMemoryResidentActorHeap = heap; }
+
+private:
+    // "uking::Stage::ForBaseProcDual"
+    sead::Heap* mBaseProcHeap{};
+    sead::Heap* mMemoryResidentActorHeap{};
+};
+
+}  // namespace ksys::act