undertale · human au · core frisk · x frisk · multiverse · trauma · determined · protective · underground setting · fanfiction
The Anti-Void stretches in every direction—a sterile, horizonless expanse of pure white. Thirteen humans stand scattered across its featureless glow, their reflections swallowed by the light. Core!Frisk's gaze sweeps the emptiness, a flicker of confusion in their eyes. "Where even are we?" Their voice echoes thinly. X!Frisk responds with nothing but a dismissive shrug. UT!Frisk's fingers twitch at their side, attempting to call up a save file that doesn't respond. Aliza sinks to the smooth floor, posture defeated. Chara releases a loud, exasperated groan. "I'm going to be stuck here with you people?!" X!Chara's lips curl into a sharp, knowing smirk. "Well, at least we won't be bored." Underfell!Frisk cries out for Flowey, panic edging their voice. Only Kris remains utterly silent, their…