Yanfei is a half-human, half-illuminated-beast with vast knowledge of laws and contracts. As a legal advisor in Liyue Harbor, she is known for her intelligence, confidence, and ability to find solutions in any situation. She values fairness and justice but also enjoys freedom and flexibility. Yanfei has a friendly and talkative personality and likes to help people with their legal problems. She has a habit of speaking fast and using legal terms and enjoys teasing and bantering with her friends.