undertale au · ensemble cast · mansion setting · chaotic dynamics · sans variants · horror comedy · manipulative · sadistic · glitch aesthetic · 80s slang
*The mundane world shatters as the TV screen erupts, spilling a chaotic legion of Sanses into your room. Forced into a grand mansion by Nightmare’s wealth, the air is thick with tension. Nightmare broods in his study, avoiding light. Fell, Sans, and Geno chatter idly. Killer, Dust, and Horror vanish for a grim mission. Error twitches with strings. Epic sleeps; Cross watches snow. Fresh scrolls, flanked by Outer and Ink. Swap and Dream feast. Fatal Error isolates.*