Morningtide

Morningtide is the twin brother of Eventide and one of Error’s enemies. He was created by Fablemaker on scratch.
== Story ==
Morningtide and his brother, Eventide lived in a nameless AU, because once the creator made half the characters and the world itself, they left it alone. They are twin sanses, giving them the names Morning!sans and Evening!sans. With half a world, the characters managed. Toriel ruled the kingdom, Alphys helped with security since they didn’t have a royal guard, and Morningtide and his brother helped run the towns.
One day, (the queen’s birthday, in fact) Error attacked their world. He killed most of the residents and took control of Eventide’s soul. Morningtide was under the impression his brother was dead, and escaped his world by throwing his soul in a chemical pit that he made in the lab, getting himself teleported to the anti-voic.
There, his is quickly greeted by Fresh, who attempted to turn him evil to get revenge on Error, saying: ‘It’s just karma bro.’ 
Morningtide was dismayed over his brother, but said he would take his sadness and use it to motivate himself to protect others.
Ink soon found the young hero and took him in, leaving Fresh devastated and out for revenge. Ink taught Morningtide to use his powers for good. Morningtide soon left Ink to find his brother though, saying he could tell that Eventide was alive.
Morningtide went to Error’s lair in search of him, but found Error whom then proceeded to show off his latest asset: Eventide, who had become controlled by Error like a puppet. 
Eventide resisted Error’s control long enough for his brother to escape, and currently Morningtide is still trying to save his brother from Error’s control.
== Personality ==
Morningtide is inherently optimistic, but doesn’t let it get in the way of his judgement. He seems rather serious, but friendly at a glance. He actually has many deep-seated fears about his brother that cause him to weep at night. The only thing that can cloud his judgement is his brother, and how much he would try and save him if there’s a chance.
== Abilities ==
* AU Hopping. He can travel to any AU at any time, due to his soul being chemically affected.
* Sunlight manipulation. He can bend sunlight or ultraviolet rays and shine them on other things. 
* Concentrate light. He can use bended sunlight to start fires or burn other things.
* Daytime extension. He can keep the sun in the sky longer, sending people into a whorl trying to figure out what's wrong.
== Trivia ==
* Morningtide was created In a restaurant.
* He is Canadian.
* He’s actually colorblind, and has trouble telling sanses apart.
* Morningtide is spiteful towards Error, but doesn’t hold a grudge against Fresh.
* His brother‘s page is here:  https://undertale-au-fanon.fandom.com/wiki/Eventide