You always believed actions define who a person is, that a mind can't be opened if it's locked from the inside and that you should always change you ringtone at least once a week. No one ever has listened to these beliefs though. To them your presence, your beliefs, *you* are as fleeting as the sun in England. You're just a supply, supply teacher, supply parent. Until you're not.

Long ago, two races ruled over the Earth: Humans and Monsters. One day, a war broke out between the two races. After a long series of battles, the monsters were victorious. The humans hid away behind a magic barrier. Legend says that those who cross the barrier are doomed to never return... / au / (official blog @ overgroundau.)

The monsters have been living above ground and Kasai doesn't seem to mind. Being a chef prodigy has some problems of its own. Once running into a couple special skeletons, she realizes she wants to achieve her dream. Part of that dream may eventually end up having a small skeleton along for the ride... Rated M for Cursing, violence, and possible smut! (sans x female oc)

After the seventh child goes missing, Inspector Frisk is given the case to find the missing children from Mount Ebott. Legend says, a monster hides in the mountain, taking them. Ha. Monsters don't exist and Frisk was going to prove that it was just a fairytale and solve this mystery, once and for all. Sans/Frisk, Undyne/Alphys

You have a friend, though he may not actually exist, he's the best friend you've ever had.

A few months after monster race joined humanity, you found yourself in your 3rd year of university with a Chemical Engineering degree waiting to be finished. Being the ghost of the chemistry lab, you spent most of your time either with your 2 best buds or with your favourite chemicals. That's until you discovered you're not the only ghost of chemistry lab. (PleaseReadChapter4First)

Sans is trying to move on after his father dies. He decides to go to the lab to find closure when he discovers something he didn't expect. What is that little skeleton doing there? And what kind of experiments was he subjected to?

With only four senses, Touch, Taste, Smell, and Hearing, Frisk must make it out of the underground without the most crucial sense for her survival, Sight. Blind!Frisk AU.

i own nothing ya hear me, this will be a non sexual interpretation of underfell sans trying to be bigger against his brother, one problem frisk wants out

Being born a hybrid from a human and a skeleton, Frisk has lived a pretty normal life on the surface, but what would happen if she fell into the world of monsters? Would she destroy the barrier? Or will she die trying? Charisk? *on temporary hiatus*

Something's different. Sans was only supposed to have a pet rock. How did I end up here? Well, there are things worse things than to be reborn as Sans' pet cat. Let's see if I can do anything.

Orphaned, and left to fend for himself with his abusive, magic hating relatives until his eleventh birthday, seven year old Harry Potter gets a pair of fairies to help him through his troubles as he grows up, this is the tale of an abused child who gets a family, albeit an odd one, years before he would have otherwise.

Around 4 years ago Sans the skeleton vanished from Snowdin Town without a trace and no one could find him or where he went. But when Papyrus, Alphys, and Undyne find out where he was... They weren't expecting to see a little human girl with him, calling him 'Daddy! How in the heck did that happen! Read and find out! Fem Frisk! I OWN NOTHING! PLEASE REVIEW!

Summery:what would happen if uf!sans got his and his fathers machine working? And it took him to a place too good to be true.. Honeymustard Underfell sans x underswap papyrus check out my tumblr leedlepie

(Soulmate!AU; Gen) Everyone in the world is born colorblind, destined to only see color once they've met the eyes of their soulmate. Tsuna meets his soulmates one by one, and gains the ability to see a new color with each first meeting.

The last week before the spring breaks feels like it lasts for months, especially if you're in an engineering school. But after an unlikely encounter with a specific robot and her creator, suddenly those spring breaks feel like being worth the wait. Well... They were right when they said that praxis is more important than theory. *Disclaimer-UT is own by Toby Fox, not by me.

Sans thought he'd lost one of the people he cared about most when Frisk gave her own life to stop Chara. As he sat there, rocking the child's still form, he made a promise... one that he'd do anything to keep. Then, a tiny skeleton baby with wispy, brown hair gives him the chance to make things right and Sans comes to learn the joys and pains of being a father to his little girl.

She is broken, and they are to be the guide to help her back on her feet; but, when secrets spill open and voices start to whisper, would it really matter if they are full of warmth? Because, when all is said and done, a monster would always be a monster and a hand stained with blood cannot wash its sins easily. sansfrisk (trigger warnings for abuse, blood, self-harm, suicide)

Dr. W.D. Gaster always knew there was something very unique about his apprentice, but he had no idea he was keeping secrets like THOSE. Could Sans really have been holding the key to breaking the barrier this entire time?

In another timeline, Frisk falls down the hole and into the world of the monsters. But this time... Everything is bit off... Everything is... Darker...

Fresh out of college Hannah and her friends Geo and Maddie moved into a mostly monster town, which they kindly named 'Monster Town'. The monsters in the community seem to like the idea of more humans being open minded and moving in. Nothing had prepared the girls for the first world problems they'll run into…like having crushes on freaking monsters.

The barrier had fallen but humanity had been quick to erect a dozen more in its place. Not physical barriers like before. No, these barriers came in the form of 'human only' signs in the windows of stores and restaurants. They came in the form of organized crime, in racial slurs spattered on the subway walls, in the form of paranoia, in the form of an unspoken border slicing down t

Dancetale AU, a few years after the Pacifist ending of the game. When life is this hard living among humans, there isn't much time to dance. Sans has nearly forgotten the feeling of moving to a rhythm at all, but she enters his life and reminds him how. Descriptions of OC left vague for a semi Reader experience. Dancetale idea belongs to teandstars on Tumblr.

Not everyone likes Frisk. And some people have gone to extremes to show it. But everyone has underestimated her last DETERMINATION. Fem! Skele! Frisk. Depressed! Sans.

Sans was always a nice boy. Helping his Royal Scientist father or taking care of his baby brother. So, why does he suddenly go missing 6 days after his 16th Birthday?