The most powerful people in the demon clan can be called great saints. Millions of years ago, gods, Buddhas, immortals, demons and ghosts fought in a battle. The demon clan was defeated and the seven great saints of the demon clan disappeared. Millions of years later, in Qingshan Village at the foot of Daqing Mountain, a young human race received the inheritance of the Seven Great Saints, defeated gods, Buddhas, and immortals in the sky, defeated demons and ghosts in the underworld, built a supreme demon kingdom, and became invincible in all realms.