This book will remain on Archive of Our Own and will not spread to other sites unfortunately. It does feature monster slavery and that is against the rules of all sites except Archive of Our Own. If you enjoyed all my other Undertales, but have missed this one because you don’t read on AO3? You don’t know what you are missing. I hope you decide to try it out. There is no real sexual situations or even much language. It’s just the subject issue that keeps it purely on AO3.
Sixty years ago, Frisk broke the monsters out and to the surface. The few humans there are decent to them, and the monster kingdom prospers. However, there are several barrier entryways, dotting the Earth all over the place. Asgore sends in teams to retrieve the technology to create their own barrier to prevent future tragedy.
They find out the hard way just how dangerous the barrier humans are. Sold as slaves by their souls or killed for disobedience, Sans is the only one left of the team after four months. With his own luck running out, and believing he’d be meeting his own end soon, he senses something he hadn’t sensed for sixty years.