Thank You for Your Love: Your Majesty, Please Come to Bed.

Gu Huai'an wore the book and became the short-lived Ninth Prince. There is a price for wearing books, in order to complete the tasks issued by the original owner and the system. Under the pressure of the mission, he committed suicide in front of the National Preceptor again and again. Then he endures what he shouldn't have to endure... This put him on the road to death.