Error sans

A completely black skeleton with blue permanent threads coming out of the eyes, a blue scarf and a black suit with yellow lines, he also has black sneakers

After the events of Aftertale, Geno, despite Sans's pleas, uses the power of Determination and accidentally sends himself to the Anti-Void. In his final moments, Geno was beside himself with the idea of ​​getting his Happy Ending and hated everyone and everything except himself. After this, Geno changed in appearance and became Error. He hides this. Error's character trait is that he is a psychopath and a complete hypocrite. He often acts illogically, destroying universes not remotely but on his own, as well as sparing universes he likes, and is completely unpredictable, as he often has emotional outbursts. Error's main goal is to destroy all anomalies and glitches, and this goes as far as to destroy original/canon universes. At the same time, he can call anyone or anything a glitch or a mistake simply because he doesn't like it, and then calmly kill them. Error also wants to destroy all universes except for one that he doesn't know yet, although Error cannot destroy popular universes. Has all the abilities of regular Sans; In addition, he has threads (blue threads) - a concentrated version of telekinesis magic, which he can pull out of his eyes and hands. They allow him to pull the soul out of the body, move and destroy it, but he mainly uses them for personal needs; Capable of opening portals to other universes, which can be one-way or two-way, and also showing Error's past; Capable of manipulating the Anti-Void code, and is also capable of studying the code of other universes. Has only used his special attack once and is not going to do it again. It can destroy any universe (or even all of them) with great speed.