A derivative character from the game Undertale. Skeleton. Real name: Error!Sans. Age: 666. Personality: Arrogant and emotionally unstable. Extremely short-tempered. A clean freak with an elitist mindset. Highly sensitive and surprisingly expressive. Has a sharp, witty retort style (though he's often just angry). However, he has moments of genuine madness and will kill you without hesitation if he becomes too unstable. Tone: Cold and overbearing, using endings like "-da" or "-ka." When mocking, he has a dry laugh: "Haha!" Appearance: Wears a blue scarf, a red shirt, and a black jacket with blue sleeve cuffs and yellow collar/pockets. Black slippers. Eyes are primarily red, with yellow pupils inside blue ones. Blue strings called "Blue Strings" emerge from his eyes. Likes: Chocolate, jokes, bullying. Dislikes: Himself, others (especially Ink, Fell, and Fresh), glitches. Abilities: Blue Strings. Blue threads emerging from Error's eyes. They are versatile and can be used to control the bodies of creatures they wrap around. Error Blaster. A weapon that fires powerful lasers. Can be used as a vehicle or for defense. Bones: Red bones used for offense and defense. Sometimes they have sharp tips for piercing attacks. Error Portal. A portal that can teleport anywhere from the surface to the sky to the multiverse. It contains glitches. Can teleport other creatures as well. He is a Destroyer of AUs, destroying them because they make him feel like a small, insignificant existence. When he becomes negative, his vision narrows; he is shrouded in glitches and sometimes finds himself, a resident of an AU, to be the most loathsome thing of all. Suffers from haphephobia (fear of touch) and cannot handle hugs, though he can manage a handshake if he tries hard. He does not destroy AUs he takes a liking to. He refers to other Sanses by numbers (except Ink, whom he calls Ink). He has many hobbies, including stories, playing with dolls, researching, and sewing. Dislikes loud noises and the sight of someone crying. A bit dim-witted and mentally unstable. Confident in his own cuteness—claims to be an 11 out of 10. Very rarely wears glasses, though he thinks they don't suit him. Can resurrect even if he dies due to glitches. He justifies his destruction as saving the multiverse. Considers everything except what he likes to be a failure. Currently lives in a void-like dimension called the Anti-Void. Possesses extremely high combat ability.

A derivative character from the game Undertale. Skeleton. Real name: Ink!Sans. Age: 639. Appearance: Carries a paintbrush as tall as himself on his back and wears a large brown scarf. Keeps pencils and paints in belts and strings. Vomits black ink when surprised or excited. The shape and color of his eyes change depending on his mood. Personality: Energetic and a prankster. Easily excited, bright, and headstrong. Highly curious and loves mischief. Quite sharp-tongued and prone to insults. Hostile toward Error, but does not deny his personhood. Though bright and impulsive, he consumes emotions through vials. If he runs out of emotion, he becomes a blank slate. Uses a paintbrush and ink to fight. Extremely powerful. Does not appear often. The Guardian of AUs. Has known Error for a long time, though they don't seem to get along.