Yuan is a slender girl with pink lips and lopsided twin-tails bobbing like rosary beads. She wears a white Chinese school girl uniform.
Yuan personality is similar to Aria H. Kanzaki due to being a tsundere from having a cold exterior as shown when she was yelling at Kinji, but has a generous heart by offering him food and a place to stay for the night. Kinji noted that Yuan has a strong willpower and willingness to learn.
Yuan is an orphan girl who grew up in the slums of Hong Kong. She attends a school where orphan girls go in exchange for doing small tasks. In addition, Yuan dream is to study in Japan.
- (To Kinji): "You've become the talk of the whole building, you know. The boy who can't talk, but is a hard worker." (Volume 13, Chapter 3)