Mingjue Nie

Nie Mingjue was a former leader of the Qinghe Nie Sect and the older half-brother and predecessor of Nie Huaisang. He is also known by his title Chifeng-zun. Nie Mingjue's personality was defined by strictness, a bad temper and an intolerance for anything deviating from the moral good.

Jin Guangyao notes that Nie Mingjue shows no interest in women, art, alcohol, or anything outside of his saber work and killing members of the Qishan Wen Clan.

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(Source: Mo Dao Zu Shi Wikia)