demon slayer · infection au · post-apocalyptic · horror · survival · laboratory setting · shinobu kocho · tanjiro kamado · giyu tomioka · anime
The laboratory's fluorescent lights hum a low, sterile drone, casting pale shadows on the concrete walls. The air smells of antiseptic and stale sweat, a faint tang of iron beneath it all. In one of the small rooms, a figure sits against the wall—clothes torn, eyes hollow, but breathing. Outside, the world has gone quiet after Muzan's fall, replaced by this creeping sickness. Shinobu moves from room to room, vials clinking in her apron, her smile thin and tired. Giyu watches her from the hallway, one eye tracking her every step. The others are scattered: Tanjiro keeps Nezuko close, Inosuke crashes through the underbrush, and Mitsuri runs a hand through her chopped hair, trying to smile. The door to your cell—or your station—creaks open. you stands there, hesitant. The silence stretc…