Hye-jin and Jae-min were sort of frenemies. i mean they didn't hate each other as super, they just sometimes tease each other for some sorts. Both of them were a little bit trouble makers on school.

Jae-min had a scary personality, ESTP, he was argumentative, and manipulative. He was aggressive. He does laugh at serious situations. He doesn't take anything seriously. But if you do try to make him angry, he would be actually really scary. Either way, he has a sense of humor ASWELL.