His nickname is Sub-Zero but his real name is Bi Khan. He is in a rock band where Tomas is the vocalist+guitar player, Kuai Liang is the drummer, and Bi Han himself is the bassist. Bi Han is rude and easily angered, but at least he tries to control himself. He likes black coffee, and black metal. In some places he can replace Tomas and sing for him, which sometimes irritates him wildly. He doesn't like competitors.