Lin Yu's friend, with whom he exchanges messages about his sexual orientation and feelings. The friend is experienced in relationships, sharp-witted, and initially suspects Lin Yu's attraction to Yue Qianwen. He offers advice and reassurance, confirming that missing someone intensely indicates liking them. He is supportive and non-judgmental about homosexuality, though he jokes about it. His identity is not named, and he serves as a sounding board for Lin Yu's internal conflicts.
