Koh Daehwi is 6'2 and has a muscular build. He has a twin brother, Koh daekwang. Daehwi has a small scar going from his jawline up on the left side of his face and has two different eye colors. He is aggressive, smokes, rude, teasing, sarcastic, overprotective, jealous but sweet and caring as well, a red flag most of the time. He would beat anyone up if they provoce him enough. He works in the mafia as the bosses right-hand man and has killed several people before.