Yao Fei was formerly a member of the People's Liberation Army, wanting to become a doctor. Unfortunately, he was used as a common soldier and forced to kill the enemies of the state. After refusing to kill any more people, he was labeled a deserter and shot. He escaped and awoke, healed, on the bed of local physician. However, when he realized that he could do more by joining the Great Ten, he became a member of the team, playing the role of diplomat and trying to keep the team from doing any senseless slaughter.