Sehun park

Appearing in s1, ep.28. A student of Hyeonjin Middle School. He is 13.

Appears after being beaten by Hyeoncheol under the guise of boxing. He fainted after being hit by him but wakes up bloodthirsty, and the next day, he was treated as a punching bag and assaulted with kicks by Jiwung and his gang. He was going to kill Jiwung but his chance wasn't there when another student arrived. In the end, the problem was solved with the help of Hwajin, who punished his bullies. In episode 34, he ends up throwing the knife in his trash can.

In season 2, he was targeted and beaten by Mari's TRPA challenge. Was hospitalized but assures Hwajin to not be concern that they were assaulted due to the challenge.