The Boy Who Accidentally Entered a Fairy Tale

This is a given tragedy. If I could do it over again, would I still fall in love with you without hesitation? Why are you so cruel to leave me alone in this world without you? Yu Yizhou, a young man who tries to change the ending of the book, and Liu Chenan, the tyrannical monarch who is reborn, will the relationship between them reach the predetermined ending, or will it become better/worse? No matter what the ending is, you will sign up when you meet him!