Zhou Ye, an eighth-realm body cultivator, is tricked by his master, who sends him to the Song family of Xuanzhou with a marriage contract to become their live-in son-in-law. The Song family's second young lady refuses the marriage, forcing the eldest daughter, Song He, who is frail, afflicted with a cold poison, and nearing death, to marry in her place. Concerned for Song He, Zhou Ye ventures into the dangerous Valley of a Hundred Beasts to hunt demonic beasts in exchange for spiritual medicine, helping her eliminate the cold poison and awaken her spiritual physique. He repeatedly defeats the Song family's mistreatment and the provocations of the young master of Wanzhen Pavilion, sweeping aside powerful enemies with his invincible physical body. He later accepts Ye Mingzhu's invitation to explore a lost sword-and-martial-arts inheritance hidden in a secret realm.