I Traveled Through Time and Became a Princess, Turned Around and Got Married as a Wife

I Remember a Book About a Boy Who Traveled Through Time and Became a Girl

In the later period, it seemed that he was wearing a cheongsam to take photos, and he was very rich. It seemed that he was a celebrity, and he was reading some book. I forgot about it. I didn't see the ending a long time ago. The number is gone. I hope you guys can help me find it.