An old acquaintance of Lin Qiaozhi from childhood, described as a troublemaker since they were kids. He is shameless, slick-tongued, and extremely flatterous. He was scolded badly by Engineer Wang in the workshop and sought Lin Qiaozhi's help to avoid punishment. He offered to bring her breakfast from the cafeteria in exchange for tutoring. He chased after her calling her Sister Qiaozhi and tried to get her to teach him lathe dismantling techniques by reading her notes.
