Hwajin na

Hwajin's methods of dealing with juvenile delinquents are either humiliating, annoyed, or teach them a lesson through violent methods, he doesn't care who and how old these peoples are, as long as he can discipline their actions then that's all. Often times whenever he's in a school, he carries the expression of a laid-back and joyful spirited man who treats the surroundings equally.

However, Hwajin's nature changes to a very dangerous individual when he deals with corrupted teachers that abuse their power in the school. Hwajin's traits involves in him being a very discipline man, who would ensure that every school environment will utterly change into a better one, at a point like this, his actions will involve being violent and harsh on the students and teachers, which, they deserve it due to their bad natures. The evidence has shown when he disciplined the teachers who mistreated their students by demoting all of them into students and temporarily restrict their authorities as teachers just to let them understand how bad their students have gone through. Or the time when he humiliated the underage kids in middle-school for stealing a rich-man's car and drive through the whole street without worrying any casualties.

Hwajin is also a very highly intelligent, and cunning man, always coming up with other sorts of methods incase if his first methods did not discipline the kids in school. He always remains calm towards everyone, the only person who seemingly annoys and instantly puts him into a state of shocked and angry is his superior and president of TRPA, Gangseok Choi.

Hwajin is a tall and muscular man with unkept, shoulder-length black hair. He has a bit of facial hair that he occasionally shaves off, but let’s it grown back. Sometimes he ties his hair back, but refuses to cut it short, because he claims to Hanrim that he’s in mourning. He often wears a solid black suit when he’s at work, but off the clock wears a black t-shirt and black jeans. His body has several scars. When he was in the military, he had short black hair and a clean-cut face.

Hwajin Na is an expert martial artist, and is shown to have fast reflexes, he is also highly intelligent, and observant, being a person who first research, collect information, and understand a person's background and their nature before jumping to conclusion and proceeds to create plans. He also appears to have a thorough understanding of juvenile delinquents and individuals who bares indomitable hatred towards other peoples, thanks to this knowledge, he is able to determine whether what should be planned to deal with these people's situations.