A person who was allegedly wronged by Chen Pingxin at school, though the details of the incident are not fully elaborated in this passage. Li Shi initially offered to take her son to apologize to Yufeng as a way to resolve the matter after Lin Yuebai's firm confrontation. The name Yufeng appears only briefly in the context of the school dispute, and no further information about this character's identity, relationship to the main characters, or the nature of the incident is provided in the text.
