Kaphwan Kim (김갑환) is a master of taekwondo, and also considers himself a fighter of justice. Since Kim was young and during his taekwondo training sessions, he was always reminded to fight for justice, and use the martial art as a way to accomplish this.
Kim can get a bit delusional with his quest for justice, but he does not mean any ill towards anyone but bad guys. He really is a good friend, good natured, if not a bit self-centered. His love for others reflects itself in the confidence he has in his sons and his disciples. Besides, a hero who fights for justice just can't go wrong, can he?
