Pei Jinmo's subordinate. He accompanied Pei Jinmo when he retrieved Yun Yang's corpse from the Dark Well. He attempted to tell Pei Jinmo that Miss Yun Yang had passed and that he should move on, but Pei Jinmo furiously told him to get out. Duan Zuo understood that whenever matters concerning Yun Yang arose, his master lost all self-control, and he knew with certainty that Pei Jinmo was going mad.
