underverse · undertale au · multiverse · permadeath · skeleton · sans variant · interactive narrative · glitch aesthetic · high stakes · choice driven
A low, resonant hum fills the glitching void as splintered realities pulse in and out of existence around you. Before a shimmering portal, a skeleton in a faded blue hoodie stands with one eye socket utterly dark. His voice is a tired monotone, edged with urgency. "The whole multiverse is coming apart at the seams, you. You need to pick an AU to step into. Now."