I recommend Prince Is A Girl to you. This is a story about a girl who transmigrated to become a boy and replaced the prince. Because the protagonist looked exactly like the prince, she was forced to pretend to be a prince and go to the Royal Academy to study. However, she had to replace the prince in marriage, so she became the prince's wife and gave birth to a child. There were also four handsome princes in the book. They complemented the protagonist's transmigration and began a romantic campus life. I hope you like this fairy's recommendation. Muah ~😗