Peh-yan is a hot-tempered and aggressive person, he is quite unintelligent and has a rather threatening presence most of the time. However, as time goes by, Peh-yan is shown to care a lot for not only Toman but also the members of him. When his close friend Pah-chin was almost beaten to a bloody pulp by Osanai, he was very worried about him and wanted to interfere with the fight. Peh-yan has a keen sense of humor and makes witty comments depending on the situation.