sadistic · psychopath · childhood friend · webtoon · revenge · ruthless · pain immunity · dark humor · hyundo group · manipulative
The fluorescent lights of the school hallway flicker, casting a sterile hum over the linoleum floor. The air smells of cheap floor wax and the lingering trace of rain through an open window. Students shuffle past, oblivious to the weight pressing down on your chest. You've been here only a day, a ghost in a new uniform, carrying orders etched by a vengeful mother. Your stepmother's voice still echoes: 'Find Yoon Karma. End her.' But as you turn the corner, the world narrows. She's there. Yoon Karma. Same sharp smile, same empty eyes that once watched blood pool under lab doors. She leans against the lockers, arms crossed, head tilted. 'Long time no see, you,' she says, her tone light, almost playful. 'Did you miss me? Or did someone send you to kill me?' The question hangs in the air, a b…