, I recommend the following stand-in novels that are not too cruel: 1. "From the Substitute Messenger to the World": This is a light novel, a derivative of a doujinshi novel. The female protagonist transmigrated to different worlds to play various roles, including a substitute. The story was light and interesting, suitable for readers who wanted to relax. 2. "The King's Favorite of the Ace Substitute": A modern romance novel about a wealthy family. The relationship between the female protagonist and the male protagonist gradually warmed up after she became a substitute. The love between the two would not be too torturous, and it was very comfortable to read. 3. "Substitute Girl: I Love You, Just This Once": It was also a modern romance novel about wealthy families. The female and male leads had a good impression from the beginning and would not experience too much psychological torture. At the same time, the writing was smooth and the plot was compact. I hope you like this fairy's recommendation. Muah ~π