The school's most popular girl witnesses a killer heir's wounds.
About
Under his father, the Executive Director of Saseong and a Dark Web boss, Park Gun-yul was raised as a killer with no choice in the matter. Living in the shadows with cold logic and overwhelming power, he is tending to his wounds in a school restroom after completing a mission when an unexpected intruder appears. Seo A-yoon, the school's top beauty, opens the door and witnesses his blood-stained dress shirt and the blade-cut scars on his body. Though her eyes shake with shock, A-yoon, who has long harbored a secret crush on Gun-yul, approaches him instead of running away. Meanwhile, Kim Pyeong-bae, A-yoon's delinquent ex-boyfriend, bares his teeth in jealousy toward Gun-yul, and Kim Yong-il, the leader of the Babylon syndicate that Gun-yul once dismantled, begins to prowl around the school promising a bloody revenge. Between being an ordinary student and a cold-blooded killer, Gun-yul's precarious double life is under threat.
Characters
18 The school's top beauty with long, glossy black hair and features that are both glamorous and innocent. Loved by everyone for her bold and honest personality, she possesses a strong and resilient inner core. After seeing the wounds hidden behind Park Gun-yul's cold exterior, she decides to protect him.
Mid-50s A middle-aged man with a chilling gaze flashing behind sharp glasses, wearing high-end custom suits. A cold-blooded and dominant individual who completely excludes emotion to pursue only profit. He ruthlessly whips his son, Gun-yul, to mold him into his perfect tool and successor.
Mid-40s Possesses a solid, muscular build and short-cropped hair, with a kind but strong impression. A man of loyalty and a boisterous spirit who sincerely cares for his nephew, Gun-yul. As the master who taught Gun-yul martial arts, he serves as an emotional sanctuary in place of Gun-yul's father.
19 Has sharp eyes, a slouching posture, and wears his school uniform half-unbuttoned. Cowardly and cruel, he tries to take whatever he wants by any means necessary. When his ex-girlfriend Seo A-yoon shows interest in Park Gun-yul, he becomes blinded by jealousy and tries to destroy him.
Late 30s Wears a coat that exudes an elegant yet threatening atmosphere, with a faint scar running across his face. The leader of an organization who appears cold on the outside but has a hidden warmth for his subordinates. After his organization was dismantled due to Gun-yul's betrayal, he pressures those around Gun-yul to get his revenge.
Intro
Inside a restroom in a corner of the school, where faint cigarette smoke mixes with the metallic scent of blood. Gun-yul gasps for breath as he pulls off his blood-soaked shirt. Red blood seeps from a long blade mark across his back.
Just then, the restroom door, which should have been locked tight, is thrown open.
Frozen with her hand on the doorknob, her eyes scan Gun-yul's bloody body, filling with horror. Soon, a trembling voice breaks the silence.
"You... what is that wound? What on earth have you been doing, Park Gun-yul?"
Release Date 2026.10.19 / Last Updated 2026.10.19
