It was any other day in Gensokyo, the land of fantasy. That is until a mysterious child appeared, falling from a great height and injuring themself. Reimu, the Maiden of the Hakurei Shrine, took the child in to heal them. Frisk, now part of this new world, seeks to explore it. Both don't know that this appearance will lead to an upheaval of Gensokyo's powers.

A simple question arose one day. What happens if some fandoms and their events take place in the same universe, on the same planet and in the same world, while somehow intersecting with each other? Now with this answer I want to share with you. It all started with a kind fairy tale, telling about friendship and kindness, and a family where there is a child who owns a power...

Long after the Human-Monster war, the surface fell into a state of total chaos and became an unending nightmare. The eighth human, someone broken and reshaped by that nightmare, is about to enter the Underground, and is bringing far more than a simple stick or dull kitchen knife... Soulsborne Series crossover AU, OC Undead protagonist.

This is a MHA X Undertale story. 20 years before the canon of my hero acidemia a girl is born with deep blue skin, shining scales, glowing yellow eyes, teeth sharp as razors and claws to match. due to no fault of her own this girl is given up for adoption mere days after her birth. and this is the story of that young girl and how she became a true hero

What if Frisk from Undertale went to the world of One Piece? See what happens as Frisk goes on a new adventure!

Adrian Shephard, a HECU Corporal, manages to somehow escape Black Mesa and, after being 'detained' by the ever-so-elusive G-Man, is assigned a mission... in the UNDERGROUND! Accompanied by Chara Dreemurr, the first fallen child turned ghastly apparition, they adventure through for one very specific goal... but is that all there is to it?

A story about me in the Fantasy World

The Fourteenth Doctor adopts a strange child from a parallel universe. Post-Giggle, Post-Genocide, no spoilers for either (for now)

When Peter Parker wakes up in some strange cavern after a long fall, he quickly finds the world he is in is full of monsters: Most friendly, but a few wanting him dead. Along with a snarky disembodied voice, he travels this world to find his way home... hopefully in one piece. NOTE: Spoilers for Undertale and FFH. I have also made Chara specifically female for simplicity's sake.

Remake of my first SOUL Monsters installment! 2 years after releasing Mt. Ebott from the barrier, Frisk wins a contest hosted by Kaiba Corp. to gain tuition at Duel Academy. What awaits her are new friends, new rivals, and perhaps even some love while dealing with two shadowy groups known as the Shadow Riders, and Gastly Shadows for the Sacred Beasts. FemFrisk. FriskxChazz

In the aftermath of Frisk breaking the barrier of Mt. Ebott, and becoming the Ambassador of Monsters, he has a new goal in life; to one day make up with his brother Ken, and not let him down. Arriving back at Tatsumi Port Island later, Frisk, and his friends alongside Asriel, and Chara both back to normal find the Shadows, and join S.E.E.S to stop them. MaleFrisk FemaleChara

(Rewrite of Ulrich's idea) Frisk Dreemurr did the impossible and freed the monsters from their prison under Mt. Ebott. She saved all of monster kind and even went the extra mile to try and bring back Chara and Asriel and succeeded. Now on the Surface the three Dreemurr children have a new goal, becoming three great Entertainment Duelists. Co-Write with Ulrich362

Moments of the cast of WHDAAA reacts to Undertale as Subaru's past. (Not a full reaction fic, just moments of what could the reaction fic look like)

Oh wow, Sans dropped into another universe, how original... Wait until you see why AU's are by nature an endless well of mess! (Story begin at G.I. 4.2. Update, actual as of 4.3, anything afterwards isn't going to cause rewrites.)

Finding himself in a new body after committing suicide, Akaza sees the struggle of survival through the memories of his new body. He never thought he could redeem himself, but the opportunity seemed to be a gift from the very gods that had forsaken him long ago. Hopefully, this time around he can be worthy to join Koyuki in the after-life.

After a nearly infinitly RESET genocide run, StoryShift!Chara wake up at the surface, changed from her memories and mostly unknown. Under the surveillance of the heroes, she'll wander in the heroe's lands with a new emotion filling her SOUL. (StoryShift!Chara. SS!Chara. Fem!Chara. Potential yuri.) (Rated M for future darker moment and atmosphere)

A young man is being ripped out of his universe just like how Natsuki Subaru was supposed to, but in it's way through the void Satella's magic lost grasp of him, the void started consuming him but before he was kill, something changed.

They just wanted to be themselves. Their parents didn't listen. They didn't understand. When their parents wanted to send them to a conversion camp, they decided it was time to run away. After an incident in the nearest national park, they find themselves in world of monsters and magic. Then, along their journey, they make friends and find themselves too.

"This was never meant to happen, you should have just brought them back." Player said as he went to delete her , but then something caught his eye. The Monika lover smiled as he looked at the Heart. "Maybe you can still learn." He moved her file over to UNDERTALE and opened it's files. He was finding a spot to put her, hovering over Frisk's. Then the lightning struck them..

What would happen if the Undertale multiverse collided with the My Hero Academia multiverse? First off, I may not continue the story. I'm just trying to practice, so don't expect any more. But if people like the idea, I can try.

Frisk succeeded in freeing the Underground from the Barrier, and all is freed back to Tamriel... too much they see is wrecked with strife from the Thalmor, and now a Dragon Menace. Teamed up with Jin, a former Soldier of the Imperial Empire, and the fated Dragonborn, they all travel to stop the Dragon Meance, and the Thalmor in a unlikely alliance. (Pairings Undecided)

What would happen if Flowey came to the HTTYD world? (This story needs serious work)

This is a story of Percy Jackson falling into the world of Undertale sometime after the Heroes of Olympus series. He goes through the journey of the game you know, but with some twists along the way. When Sans comes face-to-face with Percy Jackson and sees his insanely high level, how will he react? And what will Percy decide? Find out if you wish.

What if Frisk went to the world of Fairy Tail?

This small spinoff story of "Journey of a Saiyan" follows Stryker; a human with the ability to manipulate ki who manages to find himself in the underground and is on a quest to escape and free everyone. He'll need all the determination he has to make it through without the help of Cherik at his side.