The supporting male character and ultimate villain of the novel 'That Business in the Jianghu'. He is the eldest young master of the Pei family. He wears a gold ring on his ankle and is described as having androgynous beauty, with pale skin and a appearance compared to a Buddha statue adorned with gold and rings. He is sickly, rumored to cough every three steps and lose strength in his limbs every five steps since birth. He no longer has a protagonist halo after the author deleted and altered his scenes. He is the person Xia Jian must protect to survive.