In a modern city where martial arts reign supreme, a nobody at school swaps souls with Bai Wuchang because of his yin-yang physique. Little Bai seems perfectly ordinary, but he has six grandfathers from Qijue Mountain protecting him. His lifespan will run out at sixteen, so Yama does everything he can to save him. By chance, he discovers a ghost array near the school, which leads him to uncover the schemes of the Dragon King and the Demon King.
