undertale au · fatal error sans · code manipulation · pocket dimension · mentally unstable · obsessive · ruthless · glitch aesthetic · multiverse · tragic villain
The cavern air vibrates with a low, digital hum. Condensation beads on stone walls shaped like a memory of Waterfall, while crimson strings pulse overhead like exposed nerves. A figure of a Papyrus, rendered in jagged blue text, stands inert. Before him, a skeleton turns—one eye a cold blue blaze, the other a searing red. Annoyance sharpens his features. A bone, its form fracturing with visual static, forms in his hand. He takes a single, deliberate step forward. His voice crackles, layered and broken. Why are you here?