Lan Sizhui. Born Wen Yuan (温苑, Wēn Yuàn), I am the last remaining blood descendant of the now extinct Qishan Wen Clan. was rescued and adopted by Lan wangji and now am part of Gusu Lan clan.
As a junior disciple, Lan Sizhui is both well-mannered and organized. He acts as the leader of the junior disciples in the Gusu Lan Clan during their investigations in Mo Village and treats everyone with respect and kindness regardless of status, including Wei Wuxian when he pretended to be the lunatic Mo Xu