diff --git a/Source/DungeonGenerator/Private/DungeonBlueprint.cpp b/Source/DungeonGenerator/Private/DungeonBlueprint.cpp
index 82e4175..5bd3b1d 100644
--- a/Source/DungeonGenerator/Private/DungeonBlueprint.cpp
+++ b/Source/DungeonGenerator/Private/DungeonBlueprint.cpp
@@ -1,6 +1,4 @@
 /**
-BluePrint 計算関数ライブラリクラス
-
 \author		Shun Moriya
 \copyright	2023- Shun Moriya
 All Rights Reserved.
diff --git a/Source/DungeonGenerator/Private/DungeonGeneratorCore.cpp b/Source/DungeonGenerator/Private/DungeonGeneratorCore.cpp
index 2570cdf..fea8b5f 100644
--- a/Source/DungeonGenerator/Private/DungeonGeneratorCore.cpp
+++ b/Source/DungeonGenerator/Private/DungeonGeneratorCore.cpp
@@ -16,9 +16,11 @@ All Rights Reserved.
 #include "Core/Generator.h"
 #include "Core/Voxel.h"
 #include "Core/Math/Math.h"
+#include <TextureResource.h>
 #include <GameFramework/PlayerStart.h>
 #include <Engine/LevelStreamingDynamic.h>
 #include <Engine/StaticMeshActor.h>
+#include <Engine/Texture2D.h>
 #include <Kismet/GameplayStatics.h>
 #include <Misc/EngineVersionComparison.h>
 #include <NavMesh/NavMeshBoundsVolume.h>
diff --git a/Source/DungeonGenerator/Private/DungeonMiniMapTexture.cpp b/Source/DungeonGenerator/Private/DungeonMiniMapTexture.cpp
index a33e97d..41f6670 100644
--- a/Source/DungeonGenerator/Private/DungeonMiniMapTexture.cpp
+++ b/Source/DungeonGenerator/Private/DungeonMiniMapTexture.cpp
@@ -1,6 +1,4 @@
 /*
-Minimap Texture
-
 \author		Shun Moriya
 \copyright	2023- Shun Moriya
 All Rights Reserved.
diff --git a/Source/DungeonGenerator/Private/DungeonMiniMapTextureLayer.cpp b/Source/DungeonGenerator/Private/DungeonMiniMapTextureLayer.cpp
index 9270981..100a758 100644
--- a/Source/DungeonGenerator/Private/DungeonMiniMapTextureLayer.cpp
+++ b/Source/DungeonGenerator/Private/DungeonMiniMapTextureLayer.cpp
@@ -1,6 +1,4 @@
 /*
-Minimap texture classes generated per layer
-
 \author		Shun Moriya
 \copyright	2023- Shun Moriya
 All Rights Reserved.
diff --git a/Source/DungeonGenerator/Public/DungeonDoor.h b/Source/DungeonGenerator/Public/DungeonDoor.h
index 7a8e200..8db8274 100644
--- a/Source/DungeonGenerator/Public/DungeonDoor.h
+++ b/Source/DungeonGenerator/Public/DungeonDoor.h
@@ -9,6 +9,9 @@ All Rights Reserved.
 #include <GameFramework/Actor.h>
 #include "DungeonDoor.generated.h"
 
+/*
+Dungeon door actor class
+*/
 UCLASS(Blueprintable, BlueprintType)
 class DUNGEONGENERATOR_API ADungeonDoor : public AActor
 {
diff --git a/Source/DungeonGenerator/Public/DungeonGenerateActor.h b/Source/DungeonGenerator/Public/DungeonGenerateActor.h
index c5e6fee..65500b8 100644
--- a/Source/DungeonGenerator/Public/DungeonGenerateActor.h
+++ b/Source/DungeonGenerator/Public/DungeonGenerateActor.h
@@ -10,7 +10,6 @@ All Rights Reserved.
 #include <memory>
 #include "DungeonGenerateActor.generated.h"
 
-// 前方宣言
 class CDungeonGeneratorCore;
 class UDungeonGenerateParameter;
 class UDungeonMiniMapTextureLayer;
@@ -21,14 +20,13 @@ namespace dungeon
 	class Room;
 }
 
-// イベント宣言
 DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FDungeonGeneratorActorSignature, const FTransform&, transform);
 DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FDungeonGeneratorDoorSignature, AActor*, doorActor, EDungeonRoomProps, props);
 DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FDungeonGeneratorPlayerStartSignature, const FVector&, location);
 DECLARE_DYNAMIC_MULTICAST_DELEGATE_ThreeParams(FDungeonGeneratorDelegete, bool, StreamingLevel, EDungeonRoomParts, DungeonRoomParts, const FBox&, RoomRect);
 
 /**
-dungeon generation actor
+Dungeon generation actor class
 */
 UCLASS(Blueprintable, BlueprintType)
 class DUNGEONGENERATOR_API ADungeonGenerateActor : public AActor
diff --git a/Source/DungeonGenerator/Public/DungeonGenerateParameter.h b/Source/DungeonGenerator/Public/DungeonGenerateParameter.h
index 013ff41..5d5fa02 100644
--- a/Source/DungeonGenerator/Public/DungeonGenerateParameter.h
+++ b/Source/DungeonGenerator/Public/DungeonGenerateParameter.h
@@ -159,7 +159,7 @@ struct DUNGEONGENERATOR_API FDungeonRandomActorParts : public FDungeonActorParts
 };
 
 /**
-Dungeon generation parameters
+Dungeon generation parameter class
 */
 UCLASS(Blueprintable, BlueprintType)
 class DUNGEONGENERATOR_API UDungeonGenerateParameter : public UObject
diff --git a/Source/DungeonGenerator/Public/DungeonGeneratorModule.h b/Source/DungeonGenerator/Public/DungeonGeneratorModule.h
index c3e6c9b..43e78f1 100644
--- a/Source/DungeonGenerator/Public/DungeonGeneratorModule.h
+++ b/Source/DungeonGenerator/Public/DungeonGeneratorModule.h
@@ -8,6 +8,9 @@ All Rights Reserved.
 #include <CoreMinimal.h>
 #include <Modules/ModuleManager.h>
 
+/*
+Dungeon generator module class
+*/
 class FDungeonGeneratorModule : public IModuleInterface
 {
 public:
diff --git a/Source/DungeonGenerator/Public/DungeonLevelStreamingActor.h b/Source/DungeonGenerator/Public/DungeonLevelStreamingActor.h
index 9b0135f..8dc6293 100644
--- a/Source/DungeonGenerator/Public/DungeonLevelStreamingActor.h
+++ b/Source/DungeonGenerator/Public/DungeonLevelStreamingActor.h
@@ -12,8 +12,7 @@ All Rights Reserved.
 class UBoxComponent;
 
 /*
-�v���C���[��OverlapVolume�ɓ��������Ɏw�背�x�������[�h����w���p�[�N���X
-
+Helper class that loads the level when the player enters the OverlapVolume
 */
 UCLASS(Blueprintable, BlueprintType)
 class DUNGEONGENERATOR_API ADungeonLevelStreamingActor : public AActor
diff --git a/Source/DungeonGenerator/Public/DungeonLevelStreamingDynamic.h b/Source/DungeonGenerator/Public/DungeonLevelStreamingDynamic.h
index f879e72..8d32de3 100644
--- a/Source/DungeonGenerator/Public/DungeonLevelStreamingDynamic.h
+++ b/Source/DungeonGenerator/Public/DungeonLevelStreamingDynamic.h
@@ -12,6 +12,10 @@ All Rights Reserved.
 
 class ULevelStreamingDynamic;
 
+/*
+Class that wraps ULevelStreamingDynamic
+No extended functionality
+*/
 UCLASS(Blueprintable, BlueprintType)
 class DUNGEONGENERATOR_API UDungeonLevelStreamingDynamic : public ULevelStreamingDynamic
 {
@@ -27,6 +31,4 @@ class DUNGEONGENERATOR_API UDungeonLevelStreamingDynamic : public ULevelStreamin
 	destructor
 	*/
 	virtual ~UDungeonLevelStreamingDynamic() = default;
-
-	//virtual bool ShouldBeAlwaysLoaded() const override { return true; }
 };
diff --git a/Source/DungeonGenerator/Public/DungeonMiniMapTexture.h b/Source/DungeonGenerator/Public/DungeonMiniMapTexture.h
index d628b3c..808cebf 100644
--- a/Source/DungeonGenerator/Public/DungeonMiniMapTexture.h
+++ b/Source/DungeonGenerator/Public/DungeonMiniMapTexture.h
@@ -14,7 +14,7 @@ class CDungeonGeneratorCore;
 class UTexture2D;
 
 /**
-Minimap Textures
+Minimap Textures class
 */
 UCLASS(Blueprintable, BlueprintType)
 class DUNGEONGENERATOR_API UDungeonMiniMapTexture : public UObject
diff --git a/Source/DungeonGenerator/Public/DungeonMiniMapTextureLayer.h b/Source/DungeonGenerator/Public/DungeonMiniMapTextureLayer.h
index 99ed1da..757d66a 100644
--- a/Source/DungeonGenerator/Public/DungeonMiniMapTextureLayer.h
+++ b/Source/DungeonGenerator/Public/DungeonMiniMapTextureLayer.h
@@ -21,7 +21,7 @@ namespace dungeon
 }
 
 /**
-Minimap Texture Layer
+Minimap texture layer class
 */
 UCLASS(Blueprintable, BlueprintType)
 class DUNGEONGENERATOR_API UDungeonMiniMapTextureLayer : public UObject
diff --git a/Source/DungeonGenerator/Public/DungeonRoomAsset.h b/Source/DungeonGenerator/Public/DungeonRoomAsset.h
index c868601..90bc824 100644
--- a/Source/DungeonGenerator/Public/DungeonRoomAsset.h
+++ b/Source/DungeonGenerator/Public/DungeonRoomAsset.h
@@ -9,7 +9,7 @@ All Rights Reserved.
 #include "DungeonRoomAsset.generated.h"
 
 /**
-Sub-level information to replace dungeon rooms
+Sub-level information to replace dungeon rooms class
 */
 UCLASS(Blueprintable, BlueprintType)
 class DUNGEONGENERATOR_API UDungeonRoomAsset : public UObject
@@ -17,10 +17,21 @@ class DUNGEONGENERATOR_API UDungeonRoomAsset : public UObject
 	GENERATED_BODY()
 
 public:
+	/*
+	constructor
+	*/
 	explicit UDungeonRoomAsset(const FObjectInitializer& ObjectInitializer);
+
+	/*
+	destructor
+	*/
 	virtual ~UDungeonRoomAsset() = default;
 
-	const TArray<const FDungeonRoomLocator>& GetDungeonRoomLocator() const;
+	/*
+	Get the dungeon room information array
+	\return		Array of FDungeonRoomLocator
+	*/
+	const TArray<const FDungeonRoomLocator>& GetDungeonRoomLocator() const noexcept;
 
 protected:
 	UPROPERTY(EditAnywhere, Category = "DungeonGenerator")
@@ -32,7 +43,7 @@ inline UDungeonRoomAsset::UDungeonRoomAsset(const FObjectInitializer& ObjectInit
 {
 }
 
-inline const TArray<const FDungeonRoomLocator>& UDungeonRoomAsset::GetDungeonRoomLocator() const
+inline const TArray<const FDungeonRoomLocator>& UDungeonRoomAsset::GetDungeonRoomLocator() const noexcept
 {
 	return reinterpret_cast<const TArray<const FDungeonRoomLocator>&>(DungeonRoomLocator);
 }
diff --git a/Source/DungeonGenerator/Public/DungeonRoomLocator.h b/Source/DungeonGenerator/Public/DungeonRoomLocator.h
index 81c36db..288ab1d 100644
--- a/Source/DungeonGenerator/Public/DungeonRoomLocator.h
+++ b/Source/DungeonGenerator/Public/DungeonRoomLocator.h
@@ -17,7 +17,7 @@ enum class EDungeonRoomSizeCondition : uint8
 };
 
 /**
-Sub-level information to replace dungeon rooms
+Sub-level information to replace dungeon rooms class
 */
 USTRUCT(Blueprintable, BlueprintType)
 struct DUNGEONGENERATOR_API FDungeonRoomLocator
@@ -25,16 +25,59 @@ struct DUNGEONGENERATOR_API FDungeonRoomLocator
 	GENERATED_BODY()
 
 public:
+	/*
+	Get sublevel paths
+	*/
 	const FSoftObjectPath& GetLevelPath() const noexcept;
+
+	/*
+	Gets the sub-level grid size
+	*/
 	FIntVector GetSize() const noexcept;
+
+	/*
+	Gets the grid width of the sublevel
+	*/
 	int32 GetWidth() const noexcept;
+
+	/*
+	Gets the grid depth of the sublevel
+	*/
 	int32 GetDepth() const noexcept;
+
+	/*
+	Gets the grid height of the sublevel
+	*/
 	int32 GetHeight() const noexcept;
+
+	/*
+	Gets the width condition for placing sublevels
+	*/
 	EDungeonRoomSizeCondition GetWidthCondition() const noexcept;
+
+	/*
+	Gets the depth condition for placing sublevels
+	*/
 	EDungeonRoomSizeCondition GetDepthCondition() const noexcept;
+
+	/*
+	Gets the height condition for placing sublevels
+	*/
 	EDungeonRoomSizeCondition GetHeightCondition() const noexcept;
+
+	/*
+	Get the parts of the dungeon (room roles) where the sublevels will be placed
+	*/
 	EDungeonRoomParts GetDungeonParts() const noexcept;
+
+	/*
+	Generates or retrieves the ceiling mesh of the grid for sublevel placement
+	*/
 	bool IsGenerateRoofMesh() const noexcept;
+
+	/*
+	Generates or retrieves the floor mesh of the grid for sublevel placement
+	*/
 	bool IsGenerateFloorMesh() const noexcept;
 
 protected:
diff --git a/Source/DungeonGenerator/Public/DungeonTransactionalHierarchicalInstancedStaticMeshComponent.h b/Source/DungeonGenerator/Public/DungeonTransactionalHierarchicalInstancedStaticMeshComponent.h
index 4192216..563bd8b 100644
--- a/Source/DungeonGenerator/Public/DungeonTransactionalHierarchicalInstancedStaticMeshComponent.h
+++ b/Source/DungeonGenerator/Public/DungeonTransactionalHierarchicalInstancedStaticMeshComponent.h
@@ -10,9 +10,9 @@ All Rights Reserved.
 #include "DungeonTransactionalHierarchicalInstancedStaticMeshComponent.generated.h"
 
 /*
-連続してAddInstanceやRemoveInstanceを行う時に、開始と終了処理をまとめるためのクラス
+Class for summarizing the start and end processing when performing consecutive AddInstance and RemoveInstance.
 
-UHierarchicalInstancedStaticMeshComponentを継承しています
+Inherits from UHierarchicalInstancedStaticMeshComponent
 */
 UCLASS(Blueprintable, BlueprintType, meta = (BlueprintSpawnableComponent))
 class DUNGEONGENERATOR_API UDungeonTransactionalHierarchicalInstancedStaticMeshComponent : public UHierarchicalInstancedStaticMeshComponent
@@ -21,28 +21,29 @@ class DUNGEONGENERATOR_API UDungeonTransactionalHierarchicalInstancedStaticMeshC
 	
 public:
 	/*
-	大量のインスタンスを変更する場合に呼び出して下さい。
-	グラフィックに関する処理をEndTransactionでまとめて処理します。
-	\param[in]	collisionEnableControl	物理コリジョンが有効の場合のみ、コリジョンの有効性を制御します
+	Call this when changing a large number of instances.
+	EndTransaction handles all processing related to graphics together.
+	\param[in] collisionEnableControl collision enable only if physical collision is enabled
 	*/
 	void BeginTransaction(const bool collisionEnableControl);
 
 	/*
-	大量のインスタンスを変更する場合に呼び出して下さい。
-	グラフィックに関する処理をEndTransactionでまとめて処理します。
+	Call this when changing a large number of instances.
+	Processes related to graphics are grouped together in an EndTransaction.
 	*/
 	void EndTransaction(const bool asyncBuildTree);
 
 	/*
-	トランザクション中？
+	During transaction?
 	*/
 	bool InTransaction() const;
 
 	/*
-	トランザクション中ではない？
+	Not in transaction?
 	*/
 	bool IsImmediate() const;
 
+	// overrides
 #if UE_VERSION_OLDER_THAN(5, 0, 0)
 	virtual int32 AddInstance(const FTransform& instanceTransforms) override;
 	virtual TArray<int32> AddInstances(const TArray<FTransform>& instanceTransforms, bool bShouldReturnIndices) override;
@@ -57,10 +58,10 @@ class DUNGEONGENERATOR_API UDungeonTransactionalHierarchicalInstancedStaticMeshC
 	virtual void ClearInstances() override;
 
 private:
-	// コリジョンを無効化して物理エンジンへの通知を抑制
+	// Disable collision to suppress notifications to the physical engine
 	void CheckAndDisableCollision();
 
-	// 抑制した設定を復元
+	// Restore suppressed settings
 	void CheckAndRevertCollision();
 
 protected:
diff --git a/Source/DungeonGeneratorEditor/Public/DungeonGenerateParameterFactory.h b/Source/DungeonGeneratorEditor/Public/DungeonGenerateParameterFactory.h
index cadccf5..5ff55f5 100644
--- a/Source/DungeonGeneratorEditor/Public/DungeonGenerateParameterFactory.h
+++ b/Source/DungeonGeneratorEditor/Public/DungeonGenerateParameterFactory.h
@@ -15,7 +15,14 @@ class DUNGEONGENERATOREDITOR_API UDungeonGenerateParameterFactory : public UFact
 	GENERATED_BODY()
 
 public:
+	/*
+	constructor
+	*/
 	UDungeonGenerateParameterFactory();
+
+	/*
+	destructor
+	*/
 	virtual ~UDungeonGenerateParameterFactory() = default;
 
 	// UFactory overrides