There are not enough of these out there. So, I decided to make one myself. Undertale sans and papyrus meet Underswap sans and papyrus. I do not own the cover art or Undertale. In here Frisk will be a girl. But if you want, change the Frisk parts of she to he. What happens when Underswap sans and papyrus are brought into Undertale? Find out. Also I really enjoy writing this story! ^.^ At first I was just going to have them have a quick chat, but then I wanted to develop a whole plot to this! Updates about every week or so.