Qin Yang, the disciple of three extraordinary masters renowned for their medical and poison expertise, descends the mountain at their command. He enters the mortal world to protect his fiancée, Gu Xueqi, while searching for his relatives in the capital. Along the way, he becomes embroiled in conflicts involving martial arts families, the Dragon Pavilion, the Nine Provinces Cauldron, and the overseas Holy Court. Armed with miraculous medical skills, peerless martial arts, and an unfathomable background, he punishes evil, protects his loved ones, subdues powerful figures, and brings prestigious families to heel. As he gradually merges with the Nine Provinces Cauldron and breaks through his limits, he ultimately rises to become the mightiest protector of the Dragon Kingdom.