Undertale AU Sans and Frisk have been stuck in the Underground for what feels like years, unable to move on and unable to save everyone. Fisk isn't able to handle the conditions of the underground -namely the lack of proper oxygen and sunlight- and is beginning to die. Fisk is getting weaker by the day and as Sans falls more in love, the underground gets more dangerous. Who is a friend and who is a foe? How is he going to save everyone? More importantly, how is he going to save Frisk? See just how far Sans is willing to go to save the love of his life. Side note this cover is not mine I got it from the google which said it is from a deviant artists called BloodyNya here is a link-y poo http://bloodynya.deviantart.com/art/Undertale-Sans-and-Frisk-573320338
8 parts