How I Became Invincible Practicing a Fake Art

Delivery man Li Guiyi is forced to buy a fake martial arts manual by an old beggar, but accidentally discovers it grants him godlike powers. After accidentally injuring Ren Mianmian who was drugged, he marries her quickly and joins her family as a son-in-law. The Ren family, a declining ancient martial arts dynasty, faces pressure from the Jiang family regarding forced marriage and suppression. In front of everyone, Li Guiyi demonstrates a Tai Chi style no one in the Ren family has mastered in a century, leading others to mistake him for a martial arts master. He repeatedly defeats powerful enemies in conflicts, including Japanese experts hired by the Jiang family. Finally, at the martial arts tournament, he sweeps across major families in the southern province, defeating Jiang Feng, the eldest disciple of the Divine Dao Sect, and its master, Kaita Ichiro, helping the Ren family return to its peak.