From burning his house down, to being taken in by a faceless eldritch creature. Toby has now become curious about a certain mask wearing man. He knows just the way to get closer to him, but he realizes this might be more than he bargained for. Warning for: Gore, medical descriptions/situations, and slight homophobia. Mansion AU! art by: yasmimkilleruwu on tumblr (Rewriting! Slight OOC Toby, personal headcanons ensue. Comments and votes appreciated!)

Two misunderstood monsters (or a monster and a flower) with completely different stories and lives... They know each other, and boy do they hate each other. Well, let's see how they react when they find out about each other's pasts. (More like, let's see how Sans reacts to Flowey's past and the problems that come with giving him a soul, telling the other monsters, etc.)