He is in the final (senior) year of High School and finds himself a student in Hae-Young's class, seemingly caring little for schoolwork. He has been known to go to the nurse’s office to sleep, watch erotic movies in school, and complete mathematics tests (generally unsuccessfully) using pure guesswork. In middle school, it appears he was something of a delinquent who got into fights, and he has become quite skilled in them. This has been a source of concern to his family, at the very least for his aunt. However, he can also become focused if something interests him, like film, which causes him to be the co-founder and eventually the president of the Film Studies Club. he also loves his home room teacher Nah, Hae-Young and lives in the same neighbor hood as her and is very stubborn.