I recommend "Coincides with the King's Time and Full of Spring" to you. This book is divided into several lifetimes to describe the love between the male and female protagonists. In the first life, the male protagonist burned a butterfly on the female protagonist's chest. In the subsequent lifetimes, the female protagonist has a butterfly birthmark on her body. It suits your needs very well! I hope you like this fairy's recommendation. Muah ~😗