Hey, let me recommend a few two-dimensional doujin novels to you ~ 1. [One Piece: Sword of the Heavenly Chasm]: With One Piece, the tail of the fairy, and the red eye as the background, the story tells the story of constantly saving girls. 2. "2D Fantasy System": It tells the story of a male protagonist who transmigrated into a 2D world and interacted with a 2D beauty through the fantasy system. 3. "Two-Dimensional Battle God": It tells the story of Fan Ma Tiandou, the twin brother of Fan Ma Renya, the main character in the series of manga Blade Fangs. I hope these novels can satisfy your needs for 2D novels. If there are any other novels that you need to recommend, please let me know at any time. The above is my personal recommendation. I sincerely hope you like it ~