Sans has been teaching for a year and his second year of teaching is about to start. He didn't really have much expectations but that was until he became the teacher of Toriel's daughter, Chara.

A young man named Aiden is plucked from his own reality, and brought into the world of Undertale by Gaster, in an effort to stop his world's destruction. When he comes across a genocidal Frisk, Aiden chooses to fight in order to stop them. After all, fighting's one of the few things he knows best. (Based off of XWolf26's DoubleTale. Rewrite of DoubleTrigger.)

For Monsterkind, the Surface represented freedom. For Frisk, it's a return to some uncomfortable realities. It all began with a simple wish. When that wish faded, Frisk tried to move on. Except, 'moving on' was not so simple. Emerging from the Underground had put them in a worldwide spotlight. From an unknown child, they had become an icon of great value.

After Frisk's father died when she was eleven and her mother became heartbroken Frisk swore she would never fall in love... until she meets a very punny skeleton named Sans.

After leaving the Underground, Frisk and the monsters begin their journey down Mt. Ebbot to face the surface world. As they navigate their new environment, tensions arise between the monsters and curious but cautious humans. Frisk is reunited with familiar faces from their past, including an old caretaker, Lena, and some friends from the orphanage.

Tired, overworked, a alone in a new city Y/N is living on muscle memory and cup ramen. How will she cope when four trouble making bitties make their way into her life? They've been through hell and back, left with no hope of a home what will happen when they meet a reckless human with more determination than could ever be safe?

You are dropped into the underground world, home to many monsters when a very voluptuous goat mom approaches you and takes you in. There are many mysteries centered around you. It is up to you if you wish to uncover them. This thicc monster lady would like to help, but she wants quite a bit from you. Will you be able to satisfy her overwhelming needs like her husband? Could what yo

Во время битвы между Фриск и Омега Флауи происходит некая странная ошибка, в итоге которой... Фриск и Флауи вынуждены не просто объединится, а научится действовать синхронно и слажено, без ссор и ругани, если они хотят выпутаться из их ситуации...

After doing everything the right way in the first timeline, Frisk was compelled to do the genocide route for what they felt were "good" reasons. In doing so, they have broken utterly and become something new. Something absolutely devoted to Sans, and not remotely sane. Now they are striving to fix everything and find their path forward. What the hell is Sans supposed to do now?

Humans and monsters a slowly leaning to live in harmony again. However, many humans harbor a myriad of reasons to distrust monsterkind. As if being the ambassador to humanity wasn't hard enough, an extraterrestrial threat looms on the horizon. With the help of a being known as Dragon Lord Tao, Frisk and her new family must face new foes far more malevolent than any monster.

"You know, normally, I like to resolve things peacefully. Yet, I got a hunch that ain't gonna work for ya. So, prepare for some supreme justice." Frisk finishes their genocide. Sans, Asgore, Flowey, all of them are killed. However, there's one more opponent Frisk failed to anticipate. A foe even tougher than a true heroin or a comedian. Across from Frisk stands... Clover. (UTY Fic)

Frisk. In one universe, they are a child of the surface, falling to the Underground, to save or to kill. But here, a choice made before they are even born ends with them being a child of the Underground. Follow them through their life as they grow and learn, raised by Monsters and become the shining light in a dark world.

Undertale, but something's not right. (Fan-made reimagining of HELP Tale, made mostly out of spite due to its abandonment. Cover art was made by me)

El primero en caer fue Determinación, huyendo de los humanos. Paciencia buscaba una salida. Valentía salvó a alguien. Perseverancia buscaba a alguien. Amabilidad fue engañado. Integridad se perdió. Justicia pagaba los errores de otro. Luego, llegó el octavo niño, la octava alma, el regreso de Determinación y la más poderosa de los siete. Esa es Frisk. (Quinto arco: Alyssum).

(Add Later)

The Laboratory Complex of Dr. W.D. Gaster, which exists outside of time and space, is gathering a new group of human test subjects for a large-scale experiment. Who is destined to become something more than just "human"? And what price will have to be paid for it?

For hundreds of runs, Frisk has tried to find a way to save Asriel. After so many failures, she finds hope in the notes of one W.D. Gaster. In order to get what she wants, she must venture to the Void to alter the code of the world. But when she comes back, she will not be the same.

December 25, 2015 Mysterious black briars destroyed the whole of Ebott. Every inhabitant was lost except for a pair of brothers. Not long after, a tragedy claimed the younger one. Since then, the sole survivor did everything he could to prevent the calamity from spreading further.

Frisk comes across a slave owner beating up a skeleton monster with a gold tooth. (Based on the premise of "Slavetale" by V mum) (cover art by Pandanii)

Cheyenne et sa petite sœur, Neelam, prennent leur indépendance après quinze années passées en famille d'accueil. La plus âgée ne réussissant pas à trouver un travail, Papyrus, leur charmant voisin, lui propose de surveiller son frère, Sans, atteint d'une maladie qui lui fait perdre peu à peu la mémoire. Un travail en apparence facile qui pourrait bien être plus trompeur que prévu.

What if the Multiverse died? What if by the miracle one Papyrus would survied the destruction brought by greedy individuals from his Multiverse. What if thanks to his Savior he would become bascily a new Master and God to the rebuilded Multiverse. If you want to know, join us on the adventure of the Last and the First Papyrus in the exsistance, in this tale of Charta.

What if two humans were in the Underground at once? What if one human was DETERMINED to stop the other? What if they could both SAVE? What happens when an Unstoppable Force meets an Immovable Object? When a certain scientist pulls enough of himself together, he finally finds a way to stop the destruction of his world. (Undertale AU. Rewrite of DT.)

After taking some time off, Blueberry Sans comes back to his recording software to record his gameplay of The Mortuary Assistant. However, some spooky things happen and now he and his brother need to figure out how to survive the game. Will they make it out of the game?

Cross is not okay

Cette fanfic ce déroule dans l'AU d'Undertale "Disbilief Papyrus". Au cours du combat à Snowdin entre le protagoniste et Papyrus, Sans s'interpose et prend le coup mortel à la place de son frère. Il se téléporte avec son frère ailleurs et meurs dans ses bras, par la suite Papyrus ne réapparaitra pas jusqu'à ce que le protagoniste ne sorte de l'Underground, l'appelant à la fin...