diff --git a/backend/src/main/java/com/storycove/service/DatabaseManagementService.java b/backend/src/main/java/com/storycove/service/DatabaseManagementService.java
index 030205c..483c8b5 100644
--- a/backend/src/main/java/com/storycove/service/DatabaseManagementService.java
+++ b/backend/src/main/java/com/storycove/service/DatabaseManagementService.java
@@ -878,7 +878,7 @@ public class DatabaseManagementService {
         story.setCoverPath(rs.getString("cover_path"));
         story.setWordCount(rs.getInt("word_count"));
         story.setRating(rs.getInt("rating"));
-        story.setVolume(rs.getInt("volume"));
+        story.setVolume(rs.getObject("volume") != null ? rs.getDouble("volume") : null);
         story.setIsRead(rs.getBoolean("is_read"));
         story.setReadingPosition(rs.getInt("reading_position"));