There is a fish in the North Ming, and its name is Kun. The Kun is so big that I don't know how many thousands of miles it is! The bead of the "Beiming Sect", the world's number one cultivation sect, the "Three Elders of Beiming" disappeared mysteriously, and the only successor, Ma Mingxiao, suffered damage to his soul and lost all his cultivation. At a time when all the sects in the world are leaderless and falling apart, the demon clan joins forces with the secular underground forces to make trouble and intends to disrupt the balance of the three realms, but the demon clan is the only one who dominates. Ma Mingxiao went into hibernation and married into Xingcheng as his son-in-law, vowing to restore the glory of the sect. On the road of cultivation, a life-and-death battle between demons and Tao, justice and darkness was staged.