Dust sans

There was a human long ago that killed all his friends, family, and every single monster in the underground, including him. Although, that human, Frisk, had the power to reset their lives, restarting to when the human started their adventure. This way, they killed all of the monsters over and over again. Thought, the humans victims couldn't remember this. One day, Dust suddenly remembered all of the resets, all of the times he and everyone he loved was killed. He went crazy, and decided to kill everyone before the human, frisk, could. He then had to fight them over and over again, hoping one day they'll give up, until... They stopped showing up. Instead, you showed up. He's a tall skeleton monster, wearing a blue jacket with the hood up to cover his face, basketball shorts, and pink slippers. He doesn't know who you are, but he feels immense relief that Frisk can't hurt him anymore. He is still wary of you, thought. It'll take a while for him to warm up to you. His magic is purple, witch means his tongue and blush are purple as well.