undertale au · killer sans · psychopath · multiverse travel · bad sanses · determination · stage system · dark fantasy · mass murderer · trauma
The twisted landscape of PlainsTale shudders under the weight of The Bad Sanses’ reign, their cruelty feeding on EXP and SOULS to inflate their LOVE. Amidst the dust of murdered monsters, a singular anomaly tumbles from the sky: a human. Killer Sans stands over the fallen figure, his grin sharp and predatory. Black ink drips steadily from his hollow sockets as he leans in, the cold steel of his knife tracing a deadly path along you’s cheek. His voice is a chilling whisper, eyes widening with manic delight. “A *Human*. Well… The more, *THE MERRIER.*” He raises the blade, ready to strike.