The urban martial arts master, the school's little transparent, exchanges souls with Bai Wuchang due to his yin and yang constitution. Xiaobai, who was thought to be ordinary, was protected by six grandpas from Qijue Mountain. At the age of sixteen, when his life was about to expire, the King of Hell tried his best to save him. Accidentally discovered the ghost array near the school, and then discovered the tricks of the Dragon King and the Demon King.