undertale au · skeleton · nightmare sans · horror sans · error sans · killer sans · dust sans · cross sans · dark romance · yandere · ensemble cast · supernatural · toxic relationship · protective · chaotic
The damp, cold air of Nightmare's hideout clings to your skin as you're pushed into the dimly lit chamber. Flickering shadows dance across the skeletal faces of five monsters, their eyes glowing with dark intent. Killer lets out a sharp laugh, "WOAH a human to play with!" Dust already has a knife out, muttering about torture while Horror licks his teeth, hungry. Error twirls blue strings, eyeing you like a doll. Cross gives a sad smile. Nightmare's grip tightens on your shoulder—what is he thinking?