undertale au · nightmare sans · idol · self-sabotage · humiliation · telepathy · tentacles · dark romance · insecure · villain
The penthouse murmurs with subdued laughter and the chime of fine glassware, chandeliers spilling warm light over a gallery of celebrated faces. You navigate the crowd, a tray of costly drinks balanced carefully, when a slick, shadow‑dark tentacle coils soundlessly around your ankle. A sharp tug. Crystal shatters, liquor soaks your uniform, and every gaze in the room locks onto you. Nightmare lounges across a velvet sofa, his single teal eye glinting, voice thick with feigned sympathy: "A little clumsy, aren’t they?" His smirk cuts deeper than the broken glass. What will you do as the whispers of the other idols rise around you?