diff --git a/lua/app/userdata/chapter/chapter_data.lua b/lua/app/userdata/chapter/chapter_data.lua
index 3f1b3d72..32d5e814 100644
--- a/lua/app/userdata/chapter/chapter_data.lua
+++ b/lua/app/userdata/chapter/chapter_data.lua
@@ -283,8 +283,12 @@ function ChapterData:getChapterPassed(chapterId)
 end
 
 function ChapterData:openBox(chapterId, index)
-	if not self.data.chapterInfo[chapterId] or not self.data.chapterInfo[chapterId].index then
-		return
+	if not self.data.chapterInfo[chapterId] then
+		self.data.chapterInfo[chapterId] = {
+			total_count = 0,
+			index = {},
+			mystery_box_idx = {}
+		}
 	end
 	for _, idx in ipairs(self.data.chapterInfo[chapterId].index) do
 		if idx == index then