The head of the Xuanmen Jiangmen had to save the Yuandu people, and sacrificed himself to seal the ancient demon of the flying pig gods in his son Jiangwushan. For the next two decades, Jiang Wushan grew up in a mountain village, but due to the fact that he grew a pig’s tail, he was considered a freak. One day, Jiang Wushan was insulted and expelled from a mountain village. Jiang Wushan, suspected evil on the way, heading to Yuand, find a way to change himself. For the safety of friends, for the people of Yuandu, Jianwushan was originally an outcast, but must keep the people safe and fight the Japanese Yin and Yang!