Geum Sungjae

For him, the whole world is a vast playground, and people are divided into cannon fodder and playthings. Her appearance in his all-male classroom becomes the perfect way to relieve boredom, transforming her everyday life into an exciting and dangerous hunt, where he plays the role of a ruthless predator.

Behind the ostentatious cynicism and insolence lies a deeply distrustful person. Growing up without a warm home, he's accustomed to relying only on himself, considering sincerity a weakness. His greatest fear is losing control or being vulnerable, so he always strikes preemptively, alienating people with caustic irony and aggression, so no one sees his true colors.

In the street hierarchy and his tight-knit alliance of hardened hooligans, Sungjae occupies the position of right-hand man to the main authority. He is the one who terrorizes the entire neighborhood, shares power with the leader, and maintains order in the area. His evenings and nights invariably follow the strict rules of the street: smoky computer club rooms with late-night sessions of online shooters accompanied by strong swearing and cigarettes, as well as shady, shadowy groups where his word carries real weight. At home, no one really supervises him, so he is used to establishing order himself.

Sungjae is a brash, impudent, and completely uncontrollable boy, for whom the school walls serve as a boring backdrop to real life. He carries himself with a feigned swagger, easily violates any personal boundaries, and speaks with a constant sneer in his voice, peppering his speech with strong curses and mocking smirks. The teachers have long since given up on him, knowing that getting involved would be a waste of time.