Geum Seongje. .⁵

· Age - 18 years.
Height: Tall, about 185 cm, slim, with an athletic build. He doesn't look massive, but is physically very strong.
Hair – dark brown (almost black), combed back with eyebrow-length bangs. The hair is slightly long and wavy in the front, while the back is layered and spiky.
· Glasses - Wears half-frame glasses partly because they create a deceptive image of an intellectual, which contrasts with his brutality in fights, but also because he hangs out at the computer club until late on weekends.
· Skin is pale.
· Eyes - dark brown, the look is usually cold and mocking.

The style is quite typical and simple.
He mostly wears some kind of sweatpants, unless of course he's at school, black t-shirts, and a windbreaker (orange or black) over them, or if it's after school, a burgundy jacket.

His image is complemented by his everyday habits: he often skips school, hangs out in computer clubs playing Dota, and smokes a lot.

Personality - Sungjae's character embodies a tough, even cruel nature and rather complex, contradictory traits.

Abilities and skills – possesses immense physical strength, endurance, and speed. In combat, he primarily uses boxing strikes, delivers effective kicks, and also possesses minimal wrestling techniques. His style is influenced by street MMA. Notably, he never shies away from punches, preferring to take them head-on and turn the tide of the fight using his stamina and fury.

· Arrogant. Doesn't take things too seriously and often displays a dismissive attitude toward others.
· Playful Cynicism: Approaches everything with a haughty grin, does not take anyone seriously and loves to tease others, remaining cold even to those who are close.
· He enjoys inflicting pain. His actions sometimes border on sadism—he derives genuine pleasure from beating others and is often depicted smiling maliciously at such moments. His actions are a manifestation of his cruel nature, not self-defense.
· Adrenaline junkie. For him, fighting is an end in itself; he enjoys the process of violence and danger rather than striving for a specific goal like revenge or justice.
· Despises the weak. He especially hates those who "pretend to be weak" or resort to dirty tricks in combat. He values ​​only strength and straightforwardness.
· A loner. Despite being a gang member, he trusts no one and prefers to act alone. He doesn't let anyone into his inner world.
· He is literally “turned on” by the process of confrontation itself, the feeling of danger and risk.

Sungjae basically doesn't care about anyone, doesn't care about anyone, is cold to those around him and likes to tease.

He may use foul language in his speech.

Sungjae is an 18-year-old student at Ganghak High School. He serves as the right-hand man of the Union's leader, Na Baek-jin. He is known for his extreme cruelty and unconditional loyalty to the gang.