When Patriarch Tianyi became an immortal, he left behind a peerless heavenly book for future generations, called "Tianyi Xuanjian", which recorded the martial arts skills practiced by Patriarch Tianyi throughout his life and the methods of becoming an immortal and enlightening the Tao. In later generations, people in the martial arts world fought for this heavenly book, causing countless bloody storms.
Concept: Everyone makes mistakes in life.