Protagonist Mu Fan transmigrated to the Changsheng Continent, possessed a rare Supreme Bone, and was coveted by the family of his uncle Mu Jingyuan. His uncle and aunt Jiang Yunhe conspired to dig out Mu Fan's Supreme Bone and transplant it to his cousin Mu Qingteng, who was born with the Desolate Ancient Sacred Body. To eliminate future troubles, Mu Qingteng proposed to directly execute Mu Fan. On the verge of death, Mu Fan accidentally was reborn as an ordinary green bamboo snake, while binding the Devouring Evolution System. Relying on the system to devour demonic beasts and heavenly treasures to continuously transform and advance, Mu Fan embarked on the path of revenge.