Jin Zixun is a member of the Lanling Jin Clan and the cousin of Jin Zixuan. Jin Zixun is confrontational and arrogant. He is extremely proud of the status of the Lanling Jin Clan, and has a tendency to bully both those he sees as equals and those he deems beneath him. Jin Zixun also seems to lack self-awareness or understanding of his behavior, as Wei Wuxian notes that Jin Zixun seems to believe he is popular.

(Source: Mo Dao Zu Shi wiki)