Chapter one: Reset

SANS HAS BEEN POSSESSED BY FLOWEY!!!!!!!!!!!!
With their remarkable power they're able to take away Frisk's ability to reset.
Flowey, in total control over the fusion, shows no signs of his motive, or what he wants.
Frisk tries to fight back, they've lost everything, and are not ready to take them on.
But they, one day, find thousands of piles of ashes, they've been killing this whole time and they didn't see it.
Will they be able to free every monster in the underground, not to the surface, but from Flowey? Read your bad nightmare to find out.