Hey, I recommend you the book,"The Legend of Qingyun: Li Yao's Unrequited Love". This was a light novel, a derivative doujinshi novel. It was about the battle between the Qing Yun Righteous Sect and the Demon Sect. The daughter of the Ghost King, Biyao, blocked a fatal sword attack to save her lover and was seriously injured by the Fairy Slaying Sword. The Qing Yun disciple, Zhang Xiaofan, joined the Ghost King Sect and changed his name to Gui Li. Later, in order to save Biyao, he embarked on the dangerous road of resurrection. In this book, you can read more stories about Gui Li and the development of his relationship with Bi Yao. I hope you like this fairy's recommendation. Muah ~😗