WARNING: If you don't like the ship then don't read it! Just a bunch of Sans X Frisk oneshotes :3

After Frisk goes missing, Caitlin, Frisk's twin sister goes looking for her in the the last place she saw her. MT Ebott, the mountain of dark legends, she finds a necklace that belonged to Frisk on the ground. Just like Frisk, Caitlin tripped and fell into the Underground. Caitlin finds things she never knew existed.

What would happen if all the Sans's from 21 other Au's suddenly appeared in the Undertale universe? Undertale has lots of Au's. Some happy, and some...not so cheerful, but they all have something in common. They have a certain skeleton someone. Sans. - - - - - - - - - - - - - - - - - - - - - - - - - - - This story will include - + Underswap + Aftertale + Underfell + Outertale + Inktale + Reapertale + Underfresh + Gastertale + Dancetale + Gaster Blaster Sans + Error Sans + Hand plates + Horrortale + Littletale + Science Sans + Flowey Possession + Flowerfell + MOBtale + Dreamtale + Nightmare Sans + Swapfell + Undertale - - - - - - - - - - - - - - - - - - - - - - - - - - - Thank you for reading the whole description! I will update at least once a week. I hope you enjoy my story! - - - - - - - - - - - - - - - - - - - - - - - - - - -

After Frisk "fell" into the core, they became core!Frisk. While being stuck down there, Core!Frisk is determine to escape and after finding new friends inside the core trying to do the same, Core!Frisk has become more determined to free every trapped core-monsters(the exiled) to freedom.

DISCONTINUED! [Please, oh god, I was a stupid and ignorant child with very mediocre writing skills when I was writing this fanfic. Read with caution, for I was one of those, "i WaNT tO bE cOOl" kids on WP.] So, what if, suddenly, all the UnderTale characters were forced to stay in a cinema-like building, for who knows how long, just to watch a movie... Where all of them star in? In this book, the UT cast will be reacting to the three different routes... The Pacifist Route... Neutral Route... And the Genocide Route. We'll see their reactions and we'll see how they will feel about the different timelines... It seems like they hide a lot of secrets from each other after all. (I don't own UnderTale. The cover is mine. Thank you for your time. This get's more serious than you think.)

Frisk was just a normal girl, with a kind heart and a love for dancing, but there was one problem... She didn't know how to dance. Becoming a disgrace to the humans, she ran away. Frisk fell into Mt. Ebott... The mountain where monsters reside. The humans said that mosters were only going to hurt you. That they were nothing, but trouble. Though, during her journey, she discovers that there is something special in those music loving monsters. What kind of adventure Frisk would discover there? Female!Frisk DanceTale AU. I love this AU.

Months has passed since the barrier was broken in the world of underswap and frisk is back in the underground. Will sans be able to tell her how he feels or will her heart be taken by another?

...I'm Undertale trash. This is basically going to be the story of Undertale retold as the Underfell version. I'm sure something like this exists already...but whatever. The story is told from Frisk's point of view, and it's the Pacifist version because Genocide scares me. Anyways I hope you like it!

It's been three years since Asgore Dreemurr, king of the monsters, someone released everyone by breaking the barrier and freeing them to the surface. However, things aren't as good everyone had hoped they would be. Human still feared monsters and act cruel towards them, leaving the monsters to stay away from all cities and towns. When walking through the woods one day Sans the skeleton finds an abandoned human child, and the result of this find will shakes everyone's world to the ground.

What would happen, if two humans fell into the underground? Chara climbed up Mt.Ebbott, after being teased by the kids that they wouldn't be able to climb it. No one ever comes back from that mountain, and They know that. Chara climbed it sucessfully, but was pushed into a giant hole. It led them straight into the world of monsters, and now they must survive.