Lin Qingzhu is a male character mentioned in the story, referred to as Brother Qingzhu by Qin Banban. He is known for his skill in weaving peach blossom knots, which Qin Banban is eager to learn from him. Lin Qingzhu was previously married to Qi Shan, but they divorced, which deeply affected Qi Shan. The divorce was apparently difficult, with Qi Shan acting heartbroken and like a romantic hero afterward, leading villagers to speculate that Lin Qingzhu was the one who wronged Qi Shan. Despite the divorce, Lin Qingzhu maintains a friendly relationship with the Liu family, as Qin Banban feels comfortable arranging to learn from him. He is portrayed as a skilled craftsman and a person of good character.
