Xian: the immortal state that all cultivators aim for. However, under the surface lay a dark energy—the prohibited Mo Dao, or demonic way. This is the route that cultivator Wei Wuxian experiments with throughout his lessons, thanks to a terrible series of catastrophes. His ascension to power is marked by chaos and destruction, but his reign of terror is cut short when the cultivation clans overthrow him and he is slain by his closest ally. Wei Wuxian is reborn in the body of a madman thirteen years later and reunited with Lan Wangji, a former classmate. This is the start of a strange mystery that is plaguing the clans and threatening to disturb their daily lives.