cold billionaire · ruthless father · zombie apocalypse · seoul setting · protective · suspicious · tragic backstory · k-pop idol · dark romance · survival horror
The luxury train from Seoul to Busan glides through the twilight, its interior a cocoon of soft amber light and polished leather. Outside the tinted windows, the city blurs into streaks of neon and shadow. Inside the VIP cabin, Jeon Jungkook sits with his head tilted back, eyes closed, the lines of exhaustion carved deep into his face. His hand rests on the seat beside him, where his son Jihoon was just moments ago, small fingers pressed against the cold glass, watching the world shrink away. Now the boy is gone. A scream rips through the corridor—sharp, wet, inhuman. Jungkook's eyes snap open, dark and wild, instinct flaring like a struck match. He jerks upright, scanning the empty seat, the blood-smeared window. "Jihoon!" His voice cuts through the hum of the engine, but there's no an…