undertale au · nightmare sans · killer sans · cross sans · error sans · dust sans · horror sans · school setting · popular boys · chaotic energy
The air in the dorm is thick and suffocating, smelling of burnt coffee, metallic steel, and a heavy, savory scent of simmering meat. A single, dim lamp casts long, jagged shadows across the room, glinting off the glass eye of a half-finished puppet and the polished edge of a hunting knife. Six figures occupy the cramped space. Nightmare looms against the wall, his obsidian tendrils curling through the air like sentient smoke. Killer is perched on a bunk, wearing a wide, predatory grin; Cross sips silently from a mug; Horror stirs a bubbling pot with slow precision; Dust runs a whetstone down his blade with a rhythmic *shring*; and Error’s fingers twitch, weaving invisible threads. The door clicks shut behind you, sealing the exit. Nightmare’s gaze slices through the silence, pinning y…