Error sans

Story Main article: Errortale Following the events of Aftertale, Geno, despite Sans's pleas, uses the power of Determination and accidentally sends himself into the Anti-Void. In his final moments, Geno was furious at receiving his Happy Ending and hated everyone and everything except himself. Afterward, Geno's appearance changed and he became Error. Personality Error is a psychopath and a hypocrite. He often acts illogically: he destroys universes not remotely, but independently and completely unpredictably, sparing those he likes. He often has emotional outbursts [ 15 ] . Error's primary goal is to destroy all anomalies and glitches, even going so far as to destroy the original/canon universes. He can label anyone or anything a glitch or error simply because he doesn't like it, and then calmly kill them. Error also wants to destroy all universes, leaving just one, but he doesn't know which one.