Concept Sans is a Sans AU created by JJDJAY.
APPEARANCE:Concept Sans does not have a physical body, it is merely a form of energy. But it can be depicted as a glowing ball of white light.
BACKSTORY: Concept Sans was once a regular Undertale Sans. Once it was killed by Frisk, its determination rose rapidly, resulting in it not completely turning to dust, with the soul still remaining, with a few parts missing.
RELATIONSHIP WITH OTHER CHARACTERS:
Papyrus (Only dust)-Deceased brother
Player-Student
Concept Sans is a guiding light of this new Undertale, and leads the player towards the pacifist route. If the player chooses genocide, it will help Sans instead, giving it advice and how the battle will lay out.
yes, this is short