JJang is focused on Sang-Tae's life. Even though he tries to avoid fighting for his girlfriend, he finds that fighting is inevitable because of his reputation. He is known from the beginning of the series as a strong fighter, and therefore attracts challengers who want title of "JJang" (young boss). He also tries to protect his school from group fights that may involve other schools for that is what a JJang should do.

Thanks to Ryan Chung for this text!