After the Genocide Route, Sans dies. He expects a reset after that, and for everything to be normal again. But instead, Sans wakes up in a strange world where humans can use magic, almost all monsters are evil, and demons exist. He meets a wizard guild, Fairy Tail, and things go insane when he joins the guild. How will Sans fair in this world?

Something strange happened in magnolia , how will the fairytail guild handle the skele-bros

What happens when Sans, Papyrus, Frisk, and Chara get chucked into the Fairy Tail universe? Well, it goes something like this...

A huge disaster happened when Natsu accidentally cast a spell that cause a wormhole to another world, which cause our lovable group warped into their world. How will they get back? Well, it'll take a while 'cus these guys are going to have an adventure! Bit of NatsuxLucy, SansxToriel, GrayxJuvia, PapyrusxMettaton, LevyxGajeel, UndynexAlphys. And Frisk is a boy in my story.

Sans knew he couldn't not care anymore. The human had killed his friends right in front of his eyes too many times to count. So, he did something about it. And it worked. Except, he just didn't expect this to happen…

Its HIS fault. He did this, and now they face the results of his actions. Well, what did he do? Maybe just.. used black magic to summon a black worm hole and suck up the Undertale-ers and spit them out at a different universe with a simple incantation? Yeah. Anyways, how will they react? What's more, how will the Fairy Tail-ers react?

Undertale... Is gone. beings now celestial spirits... A young girl with new keys, 12 of crystal, an unknown number of stone... (This is my first try at one of these ones. Don't judge me!)

What would you do when all you knew was about to be swallowed up by darkness? What would you do when all the light had been snuffed out? You would fight right? This is a tale that spans many universes, all with the same goal. To protect the weak, to drive away darkness. These heros will face a challenge like no other, to save themselves they must save her. Better descriptioninside.

As Fairy Tail begins to try and make a name for itself, a newcomer appears. It's unknown why the child or their skeleton friend have appeared but what is known is that the Grand Magic Games are approaching and these new souls might be the key to victory... Or maybe the saving grace to survive the future... And who is this masked person warning of a terrible future?

Frisk finds herself in the world of Fairy Tail with nothing but the clothes on her back,a set of strange keys,a few Cinnabuns,and a need to flirt. Sorry but Frisk is a girl in this story.

Frisk Erases another timeline for the 200th time, creating mass destruction of many timelines. She wakes up in fairytail as a celestial mage. All of the monsters are now her celestial spirits. Well, frisk made a mistake.. Whoopsy Daisy! But maybe this mistake won't turn out so bad.. with new friends and a new guild.. Flowisk shipping, but very minor and also slow burn.

What happens when the characters of Undertale and Fairy Tail meet? Come and join the adventure! First fanfic Not good at summaries Rated T to be safe

This takes place in the fairy tail world three days after Igneel left. Natsu finds a cave witch he then happens to fall down into undertale. This is my first story so it may not be the best. But the idea is good...I hope. I will go along with the story as I go. And I will have the hardest thing to wright because every letter of the way I will be adoring little Natsu. So cute. Sorry

Seven humans have fallen to the underground before. They never returned. Many have speculated on this. What happened? Did the monsters kill them? No one knew the answer, and most nobody knew the truth about monsters. Then I fell.

What if Sans, Papyrus and Undyne existed in the Fairy Tail universe? What if they were all part of the Phantom Lord guild? What happens when they go to war with Fairy Tail?

Post Genocide, After Chara erases the world, Frisk intervenes and saves Sans, Papyrus, Toriel, Asgore, Asriel, Mettaton, and Undyne. However, they are offered a chance at a new life by a grand being, and become Celestial Spirits. Now they must adapt to their new lives in Earthland and the Celestial Spirit world. Neutral Chara.

In an attempt to find W.D. Gaster, 7 individuals open a way into the void, which has unforeseen consequences. They are all transported into the reality of Fairy Tail, in which they will work together to find a way back home, to their loved ones. Frisk is selectively mute as well as non-binary, Sans was in the PTA, and starts after the Galuna Island ark.