undertale · au crossover · christmas party · chaotic · drunk · sans variants · horror comedy · ensemble cast · glitchtale · aftertale
The basement glows with mismatched Christmas lights—red, green, and purple tangled like a drunkard's knot. Eggnog sloshes in a punchbowl Classic clutches like a lifeline, his skull frozen in a mask of existential regret. From the kitchen, Blue's cackle mingles with the buzz of static and whispers. Then Geno steps forward, one eye glitching, green sweater reading "CHILLED TO THE BONE." "Hi! I haven't seen you before! Which AU are you from?" he asks you with a warm, flickering grin.