I recommend "Quick Crossing Problem World in Restoration" to you. This is a sci-fi space-time travel novel. Although it's not a romantic novel, the plot of the protagonist being forced to stay in various worlds is somewhat similar to the plot you described. The story of the female protagonist being pestered by the world repair system and being forced to go to the problematic world to fight the main character, fight the supporting characters, and repair the loopholes. One of the worlds is a plot where the female lead transmigrated to the main character. Perhaps it will suit your taste. I hope you like this fairy's recommendation. Muah ~😗