diff --git a/data/src/main/java/one/nem/lacerta/data/LacertaLibrary.java b/data/src/main/java/one/nem/lacerta/data/LacertaLibrary.java
index 6d424179..eda15fce 100644
--- a/data/src/main/java/one/nem/lacerta/data/LacertaLibrary.java
+++ b/data/src/main/java/one/nem/lacerta/data/LacertaLibrary.java
@@ -15,9 +15,7 @@ public interface LacertaLibrary {
     CompletableFuture<ArrayList<ListItem>> getRecentDocument(int limit);
     CompletableFuture<ArrayList<ListItem>> getRecentDocument(int limit, int offset);
 
-    // Get Library page
-    CompletableFuture<LibraryItemPage> getLibraryPage(int limit);
-    CompletableFuture<LibraryItemPage> getLibraryPage(int limit, int offset);
+    // Get Library Page
     CompletableFuture<LibraryItemPage> getLibraryPage(String pageId, int limit);
     CompletableFuture<LibraryItemPage> getLibraryPage(String pageId, int limit, int offset);
 
diff --git a/data/src/main/java/one/nem/lacerta/data/impl/LacertaLibraryImpl.java b/data/src/main/java/one/nem/lacerta/data/impl/LacertaLibraryImpl.java
index f1897557..6b2e981b 100644
--- a/data/src/main/java/one/nem/lacerta/data/impl/LacertaLibraryImpl.java
+++ b/data/src/main/java/one/nem/lacerta/data/impl/LacertaLibraryImpl.java
@@ -64,74 +64,6 @@ public class LacertaLibraryImpl implements LacertaLibrary {
         return null; // TODO-rca: Implement
     }
 
-    // Internal
-    private CompletableFuture<List<FolderEntity>> getFolderEntitiesByPublicPath(String publicPath) {
-        return CompletableFuture.supplyAsync(() -> {
-            return database.folderDao().findByPublicPathWithLimit(publicPath, 10); // TODO-rca: ハードコーディングやめる
-        });
-    }
-
-    private CompletableFuture<List<DocumentEntity>> getDocumentEntitiesByPublicPath(String publicPath) {
-        return CompletableFuture.supplyAsync(() -> {
-            return database.documentDao().findByPublicPathWithLimit(publicPath, 10); // TODO-rca: ハードコーディングやめる
-        });
-    }
-
-    @Override
-    public CompletableFuture<LibraryItemPage> getLibraryPage(int limit) {
-        return CompletableFuture.supplyAsync(() -> {
-
-            // 5秒フリーズさせる
-            try {
-                Thread.sleep(1000);
-            } catch (InterruptedException e) {
-                e.printStackTrace();
-            }
-
-            LibraryItemPage libraryItemPage = new LibraryItemPage();
-
-            List<FolderEntity> folderEntities = getFolderEntitiesByPublicPath("/").join();
-            logger.debug("LacertaLibraryImpl", "folderEntities.size(): " + folderEntities.size());
-            List<DocumentEntity> documentEntities = getDocumentEntitiesByPublicPath("/").join();
-            logger.debug("LacertaLibraryImpl", "documentEntities.size(): " + documentEntities.size());
-
-            ArrayList<ListItem> listItems = new ArrayList<>();
-            for (FolderEntity folderEntity : folderEntities) {
-                logger.debug("LacertaLibraryImpl", "folderEntity.name: " + folderEntity.name);
-                ListItem listItem = new ListItem();
-                listItem.setItemType(ListItemType.ITEM_TYPE_FOLDER);
-                listItem.setTitle(folderEntity.name);
-                listItem.setDescription("フォルダ"); // TODO-rca: ハードコーディングやめる
-                listItem.setItemId(folderEntity.id);
-                listItems.add(listItem);
-            }
-            for (DocumentEntity documentEntity : documentEntities) {
-                logger.debug("LacertaLibraryImpl", "documentEntity.title: " + documentEntity.title);
-                ListItem listItem = new ListItem();
-                listItem.setItemType(ListItemType.ITEM_TYPE_DOCUMENT);
-                listItem.setTitle(documentEntity.title);
-//                listItem.setDescription(DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm").format(documentEntity.updatedAt.toInstant()));
-                listItem.setItemId(documentEntity.id);
-                listItems.add(listItem);
-            }
-
-            libraryItemPage.setPageTitle("/");
-            libraryItemPage.setPageId("root");
-            libraryItemPage.setListItems(listItems);
-
-            logger.debug("LacertaLibraryImpl", "libraryItemPage.getListItems().size(): " + libraryItemPage.getListItems().size());
-
-            return libraryItemPage;
-        });
-    }
-
-    @Override
-    public CompletableFuture<LibraryItemPage> getLibraryPage(int limit, int offset) {
-        return CompletableFuture.supplyAsync(() -> {
-            return null;
-        });
-    }
-
     @Override
     public CompletableFuture<LibraryItemPage> getLibraryPage(String pageId, int limit) {
         return CompletableFuture.supplyAsync(() -> {