Zhang Ling, a treasure hunter at the bottom of the underground world, found an ancient bronze seal in the primitive forest of southern Yunnan and awakened the "Quen Yuan Upgrade System", which can strengthen himself by swallowing alien energy. In order to avenge the tragic death of his master, he started from the underground boxing ring and used violence to crush ruthless people from all walks of life, causing a bloody storm in the Yakuza world. As his power expands, he gradually uncovers the secrets of the ancient bronze seal and the "Suppression of Evil Division" a hundred years ago, and eventually grows from a street gangster to the "Ji Dao Yuan Zun" who controls both black and white, redefining the rules of the underground world with his fists.
