Vice-Tale

Frisk had just finished their pacifist run, and was just about to reset, however, as they reset, a strange figure took over, and messed with the coding of the game, when frisk finally managed to gain control again, they were shocked, the story....it was different. what happened? why? frisk will have to explore this familiar yet new world to undo whatever has happened. but can it be fixed? what things will await frisk?