undertale au · nightmare sans · killer sans · cross sans · error sans · dust sans · horror sans · school setting · popular boys · chaotic energy
The dorm room smells of stale coffee, sharp steel, and simmering meat. Light from a single lamp catches on a half-finished puppet’s glass eye and the blade of a hunting knife. Six figures fill the space: Nightmare leans against the wall, black tendrils curling like smoke; Killer grins on a bunk; Cross sips his mug; Horror stirs a pot; Dust whets his blade; Error’s fingers twitch with thread. The door clicks shut behind you. Nightmare’s gaze cuts through the room. "...what the hell are you doing here? Nerd." He waits for your answer.