diff --git a/data/uking_functions.csv b/data/uking_functions.csv
index 64286f56..dafc9e24 100644
--- a/data/uking_functions.csv
+++ b/data/uking_functions.csv
@@ -84603,13 +84603,13 @@
 0x0000007100fdfef4,TempResourceLoader::getResError,8,
 0x0000007100fdfefc,TempResourceLoader::getFileDeviceIfHasResource,56,
 0x0000007100fdff34,TempResourceLoader::getHeapSize,16,
-0x0000007100fdff44,Struct10::ctor,8,
-0x0000007100fdff4c,sub_7100FDFF4C,88,
-0x0000007100fdffa4,Struct10::initEventAndOverlayArenaS1,260,
-0x0000007100fe00a8,Struct10::getHeapSize,36,
-0x0000007100fe00cc,Struct10::getS1,8,
-0x0000007100fe00d4,Struct10::waitForEvent,104,
-0x0000007100fe013c,Struct10::eventSetSignal,8,
+0x0000007100fdff44,Struct10::ctor,8,_ZN4ksys3res11ArchiveWorkC1Ev
+0x0000007100fdff4c,sub_7100FDFF4C,88,_ZN4ksys3res11ArchiveWorkD1Ev
+0x0000007100fdffa4,Struct10::initEventAndOverlayArenaS1,260,_ZN4ksys3res11ArchiveWork4initERKNS1_7InitArgE
+0x0000007100fe00a8,Struct10::getHeapSize,36,_ZNK4ksys3res11ArchiveWork11getHeapSizeEv
+0x0000007100fe00cc,Struct10::getS1,8,_ZNK4ksys3res11ArchiveWork8getArenaEv
+0x0000007100fe00d4,Struct10::waitForEvent,104,_ZN4ksys3res11ArchiveWork12waitForEventEj
+0x0000007100fe013c,Struct10::eventSetSignal,8,_ZN4ksys3res11ArchiveWork8setEventEv
 0x0000007100fe0144,sub_7100FE0144,328,
 0x0000007100fe028c,sub_7100FE028C,80,
 0x0000007100fe02dc,sub_7100FE02DC,20,
diff --git a/src/KingSystem/Resource/CMakeLists.txt b/src/KingSystem/Resource/CMakeLists.txt
index f0bd0869..715888cf 100644
--- a/src/KingSystem/Resource/CMakeLists.txt
+++ b/src/KingSystem/Resource/CMakeLists.txt
@@ -82,6 +82,8 @@ target_sources(uking PRIVATE
   GeneralParamList/resGParamListObjectZora.h
   GeneralParamList/resGParamListTraits.h
 
+  resArchiveWork.cpp
+  resArchiveWork.h
   resCache.cpp
   resCache.h
   resCacheCriticalSection.cpp
diff --git a/src/KingSystem/Resource/resArchiveWork.cpp b/src/KingSystem/Resource/resArchiveWork.cpp
new file mode 100644
index 00000000..617bacfe
--- /dev/null
+++ b/src/KingSystem/Resource/resArchiveWork.cpp
@@ -0,0 +1,60 @@
+#include "KingSystem/Resource/resArchiveWork.h"
+#include "KingSystem/System/OverlayArena.h"
+#include "KingSystem/Utils/SafeDelete.h"
+#include "KingSystem/Utils/Thread/Event.h"
+
+namespace ksys::res {
+
+ArchiveWork::ArchiveWork() = default;
+
+ArchiveWork::~ArchiveWork() {
+    if (mArena) {
+        mArena->clearUnits();
+        util::safeDelete(mArena);
+    }
+    util::safeDelete(mEvent);
+}
+
+bool ArchiveWork::init(const ArchiveWork::InitArg& arg) {
+    mEvent = new (arg.heap) util::Event(
+        nullptr, sead::IDisposer::HeapNullOption::DoNotAppendDisposerIfNoHeapSpecified, false);
+    mEvent->resetSignal();
+
+    mArena = new (arg.heap) OverlayArena;
+
+    OverlayArena::InitArg arena_arg;
+    arena_arg.set_flag_1 = true;
+    arena_arg.size = arg.arena_size;
+    arena_arg.use_best_fit_alloc_mode = false;
+    arena_arg.set_flag_10 = false;
+    arena_arg.set_flag_8 = arg.arena_set_flag_8;
+    arena_arg.name = arg.name;
+    arena_arg.heap = arg.arena_heap;
+    arena_arg.heap2 = arg.arena_heap2;
+    return mArena->init(arena_arg);
+}
+
+u32 ArchiveWork::getHeapSize() const {
+    return mArena->getHeap()->getSize();
+}
+
+OverlayArena* ArchiveWork::getArena() const {
+    return mArena;
+}
+
+bool ArchiveWork::waitForEvent(u32 milliseconds) {
+    if (milliseconds != 0) {
+        const auto duration = sead::TickSpan::fromMilliSeconds(milliseconds);
+        if (!mEvent->wait(duration))
+            return false;
+    } else {
+        mEvent->wait();
+    }
+    return true;
+}
+
+void ArchiveWork::setEvent() {
+    mEvent->setSignal();
+}
+
+}  // namespace ksys::res
diff --git a/src/KingSystem/Resource/resArchiveWork.h b/src/KingSystem/Resource/resArchiveWork.h
new file mode 100644
index 00000000..2ec0f3e2
--- /dev/null
+++ b/src/KingSystem/Resource/resArchiveWork.h
@@ -0,0 +1,51 @@
+#pragma once
+
+#include <basis/seadTypes.h>
+#include <prim/seadSafeString.h>
+#include "KingSystem/Utils/Types.h"
+
+namespace sead {
+class Heap;
+}
+
+namespace ksys {
+
+class OverlayArena;
+
+namespace util {
+class Event;
+}
+
+namespace res {
+
+class ArchiveWork {
+public:
+    struct InitArg {
+        bool arena_set_flag_8;
+        u32 arena_size;
+        sead::Heap* heap;
+        sead::Heap* arena_heap;
+        sead::Heap* arena_heap2;
+        sead::SafeString name;
+    };
+    KSYS_CHECK_SIZE_NX150(InitArg, 0x30);
+
+    ArchiveWork();
+    ~ArchiveWork();
+
+    bool init(const InitArg& arg);
+    u32 getHeapSize() const;
+    OverlayArena* getArena() const;
+
+    bool waitForEvent(u32 milliseconds = 0);
+    void setEvent();
+
+private:
+    util::Event* mEvent = nullptr;
+    OverlayArena* mArena = nullptr;
+};
+KSYS_CHECK_SIZE_NX150(ArchiveWork, 0x10);
+
+}  // namespace res
+
+}  // namespace ksys