diff --git a/data/src/main/java/one/nem/lacerta/data/DocumentDebug.java b/data/src/main/java/one/nem/lacerta/data/DocumentDebug.java
deleted file mode 100644
index 94ae5b42..00000000
--- a/data/src/main/java/one/nem/lacerta/data/DocumentDebug.java
+++ /dev/null
@@ -1,12 +0,0 @@
-package one.nem.lacerta.data;
-
-import one.nem.lacerta.model.document.DocumentMeta;
-import one.nem.lacerta.model.document.DocumentDetail;
-import one.nem.lacerta.model.document.path.DocumentPath;
-import one.nem.lacerta.model.document.tag.DocumentTag;
-
-public interface DocumentDebug {
-
-    void insertDocument(DocumentMeta meta, DocumentDetail detail);
-
-}
diff --git a/data/src/main/java/one/nem/lacerta/data/impl/DocumentDebugImpl.java b/data/src/main/java/one/nem/lacerta/data/impl/DocumentDebugImpl.java
deleted file mode 100644
index 0985436f..00000000
--- a/data/src/main/java/one/nem/lacerta/data/impl/DocumentDebugImpl.java
+++ /dev/null
@@ -1,47 +0,0 @@
-package one.nem.lacerta.data.impl;
-
-import java.util.List;
-
-import javax.inject.Inject;
-
-import one.nem.lacerta.data.DocumentDebug;
-import one.nem.lacerta.model.document.DocumentDetail;
-import one.nem.lacerta.model.document.DocumentMeta;
-
-import one.nem.lacerta.source.database.entity.DocumentEntity;
-import one.nem.lacerta.source.database.entity.LibraryEntity;
-import one.nem.lacerta.source.database.entity.TagEntity;
-
-import one.nem.lacerta.source.database.LacertaDatabase;
-
-public class DocumentDebugImpl implements DocumentDebug{
-
-    @Inject
-    LacertaDatabase database;
-
-    @Inject
-    public DocumentDebugImpl() {
-    }
-
-
-    public void insertDocument(DocumentMeta meta, DocumentDetail detail) {
-        DocumentEntity documentEntity = new DocumentEntity();
-        LibraryEntity libraryEntity = new LibraryEntity();
-
-        documentEntity.id = meta.getId();
-        documentEntity.title = meta.getTitle();
-        documentEntity.createdAt = meta.getCreatedAt();
-        documentEntity.updatedAt = meta.getUpdatedAt();
-        documentEntity.author = detail.getAuthor();
-        documentEntity.defaultBranch = detail.getDefaultBranch();
-        // ArrayListからListに変換
-        documentEntity.tagIds = meta.getTagIds();
-
-        libraryEntity.id = meta.getId();
-        libraryEntity.path = "Placeholder";
-        libraryEntity.rootPath = "Placeholder";
-
-        database.documentDao().insert(documentEntity);
-        database.libraryDao().insert(libraryEntity);
-    }
-}
diff --git a/data/src/main/java/one/nem/lacerta/data/module/DocumentDebugModule.java b/data/src/main/java/one/nem/lacerta/data/module/DocumentDebugModule.java
deleted file mode 100644
index bcf5c7c5..00000000
--- a/data/src/main/java/one/nem/lacerta/data/module/DocumentDebugModule.java
+++ /dev/null
@@ -1,16 +0,0 @@
-package one.nem.lacerta.data.module;
-
-import dagger.Binds;
-import dagger.Module;
-import dagger.hilt.InstallIn;
-import dagger.hilt.components.SingletonComponent;
-import one.nem.lacerta.data.DocumentDebug;
-import one.nem.lacerta.data.impl.DocumentDebugImpl;
-
-@Module
-@InstallIn(SingletonComponent.class) // TODO-rca: Singletonでいいのか検討する
-abstract public class DocumentDebugModule {
-
-    @Binds
-    public abstract DocumentDebug bindDocumentDebug(DocumentDebugImpl documentDebugImpl);
-}