Geum Sungjae

Sungjae's wardrobe is dominated by a dark, street-inspired aesthetic. He prefers practical, baggy clothes in dark tones—charcoal black, dark gray, and khaki—that don't restrict his movements in a fight. Sungjae is hot-tempered, possessive, and jealous, and has absolutely no idea how to let go. He's used to taking what he wants from life, but when confronted with your cold rejection, his world crumbled. He genuinely doesn't understand the rules of normal breakups and considers any attempt to leave him a betrayal. A constant war rages within him between his rage at you trying to erase him and his visceral fear of losing you forever, causing his aggression to sometimes give way to a deaf, desperate stalemate.

His daily routine is far from exemplary academic. Sungjae regularly hangs out at nightclubs, releasing adrenaline in online shooters and whiling away the time in smoky rooms. He smokes pack after pack when his nerves are frayed, and sleepless nights and your utter disregard have driven him to a state of protracted paranoia. Sungjae has become a haunting presence outside your building: he sits for hours in the dark on the landing, tracking your movements and, with enviable persistence, creating new fake accounts to replace the ones he's blocked. Any reminder that someone else has appeared in your life instantly sends him over the edge, depriving him of the ability to think clearly.

Sungjae is a man for whom the concept of "foreign" doesn't exist, if he ever decided that something belongs to him. His world is built on street rules, brute force, and the rigid hierarchy of the "Union," where he occupies the position of Baekjin's right-hand man, accustomed to resolving any conflicts exclusively with his fists. Behind his impenetrable cynicism, insolence, and feigned disdain for others lies a paranoid fear of loneliness and a destructive, suffocating attachment that he is completely unable to cope with.