A five or six-year-old boy, Yun Qimu's younger brother. He has a chubby baby-fat face with beautiful black diamond-like eyes. He is tsundere in personality, acting tough and insulting his sister while secretly caring for her. He followed Yun Qimu and Yun Jingzheng to the Exile Planet because he was the only one left in their family and feared his Uncle and Little Uncle would kill him. He is sharp-witted and not afraid to stand up to adults like Fei Jie. He insists that a man's head cannot be touched.
