I would say it is the Chinese classic, The Dream of the Red Chamber.

答案是中国经典名著《红楼梦》。

The romantic festival has been well documented in historical literature, including " Journey to the West" and " Dream of the Red Chamber" , and has since inspired countless famous poems.

这个浪漫的节日在历史文献中有很好的记载，其中包括《西游记》和《红楼梦》，并从此启发了无数著名诗歌的创作。