(Ask and art by @dseval. Tumblr decided the ask was too long and wouldn’t let me reply.)
Stars are trauma triggers for Killer. They remind him of the Resets.
Killer, back when he was Sans, dreaded the constant Resets a lot more than he did the Genocides or even the idea of the world being Erased—he wanted to stop or continue, anything but going back or replay. At least, according to the human.
Something New’s human really loved telling Sans what he thought and felt. Almost as if they could read his mind..
So in this case, I’d say an Outertale Killer may even grow from fearing, avoiding, and disliking stars, to outright hating them.
I think it’d be a funny idea if Nightmare collected all these Killers all at once, but I also don’t think he would do it. Not only because these Killers are more likely to kill eachother, but because it’s a lot of work to break in and train them. Just not worth it, and one-at-a-time works a lot more.
The drawing is so cute, I love it.
