Separated from his father and their allies at the very moment of their victory, Shirou Emiya is sent fleeing through the mountains of Germany, constantly perused by their enemy's. In an attempt to find a place to hide and recuperate, the young magus uncovers something far older, and far greater, than anything he has before encountered.

It's been over two years since Frisk fell to the Underground, and was adopted by the Dreemurr family. One of her former foster parents has finally noticed, and come looking for her. Now, if Frisk can't find a way to bring her families together... it might just tear her apart. Book Three of The Underground's Saviour

Frisk and Company get sent to Mobius where they meet Sonic and friends. They soon meet Eggman who is set on getting Frisk to use her determination to power a super robot that can finally destroy sonic. Will they be able to stop Eggman or will Eggman catch Frisk and defeat the blue blur once and for all? SHIPPING INCLUDED-(sonicas (oc ship), Alphdine, Chasriel])

The whole of City Z shook as a mysterious house appeared in the street. Little did they and their protector Saitama know that these new visitors would bring destruction, hope and determination. Pacifist ending. SPOILERS FOR BOTH SOURCES

What happens when Scarlett, the hot-headed Unova champion, challenges Mettaton, the Underground's MOST POPULAR celebrity, to a theater competition? With the Undertale cast on vacation in Alola (and all in the same guest house may I add), Frisk agrees to act as producer for the whole thing while roping Sans and Flowey into it as well. On the Pokemon side of things however...

Monsters are free. 3 years have gone by with little conflict. However, The Dark Lord has decided to punish humanity for it’s sins. Things will seem hopeless for human and monster kind.But, someone will not allow the Dark Realm to consume earth.

After being freed from an experiment hosted by a rogue company, a band of 9 orphans try to start a new life for themselves. However, they soon find out there is more to the company then they realised. And they have to find everything out soon, especially if they want to avoid recapture. But to uncover things time forgot, you have to venture into the void...

After freeing monsters from the Underground, Frisk does their best to make everything right in a cruel world; but cruel is just the tip of the iceberg. The surface is plagued with magic infused creatures created by the Barrier Incident, forcing the near-extinct humans and monsters to fight for their lives; while evil forces also plan their destruction from within the shadows.

La vie de Léa change du tout au tout quand des monstres surgissent de nulle part pour l'attaquer et qu'elle se retrouve contrainte de vivre dans une académie loin des humains.

This is the story about Inuyasha and how he came to the underground. Eventually there will be a part of the story of him on the surface and with his new family.

A death by betrayal will all but spark a tale that would be remembered. Now, unbound by fate and fickle prophecies, he will make his legend. As nothing in the entire world of shinobi will be able to stop a raging storm that is determined.

This is an outerstory of Touhou: Sans the Sansokyo skeleton talking about Yukari's and Sans son W.D Breach a skeleton and the next maintainer Gensokyo's balance and order.

"Rise and shine Corporal Shepard. Your time has come again." Adrian wakes up in an unknown location, separated from the rest of his unit and with no known way to escape. Just like old times. But at least he gets his weapons back, and hey, at least everything isn't trying to kill him.

Sakura is asked by the Mayor to go to the underground to understand the monsters. But she finds herself trapped by a force that wants to leave the underground as well. Acts 1 and 2 are up.

In a dystopian future where 'friend' means 'tool to be gotten rid of when no longer useful', you live alone or you never sleep. When the product of this culture falls into a underground civilization where everyone is friends (the true meaning), it will come as a shock to both sides. And where is Frisk? (Also on Ao3!)

Sans is tired. he ends up inside a baby Naruto, and is absorbed. THIS FIC IS DED but its ok i guess.

Something happens to Sans when he rebels against a reset. Suddenly things arent as they should be in Naruto's life. things are changing, new choices are made, and a new -lighter- Naruto has appeared. (if you're here from One frail boy be sure to leave a comment!)

This takes place after the events of Undertale Distinctive Disortion events, Asriel attempts to change a few things by capturing the human before letting them seeing their friends therefor Sans was been killed but Yukari gave him the power by resurrecting his soul as an overpowered type but in exchange Sans was been transported into Touhou universe where he met his old friend...

Monsters have been freed from the underground and are still getting use to humans way of living. After being left by may events because his friends and family forgot about him, Sans meets a strange human who's LV changes depending on sections and feelings.

Here we are we made it. The Underleague, the most difficult challenge for any pokemon champion out there. 8 Gyms, 4 Elite members, 1 ultimate pokemon master. Their latest opponent? A...ten year old kid, without a license and and little eevee...Um is-is this normal? Oh, so your Frisk and you literally fell down here? Well in order to get out you have to go through the league. Sorry

Sans has gotten himself stuck in the void between worlds in a successful attempt to stop the resets of his timeline. He's not sure how long he's been chillin' alone there, but eventually a chance at escape stumbles his way in from the Veil of Death. His name?—Sirius Black. (no pairings)

In which Dimitri meets an unusual ally.

One year has passed since the disastrous research mission to the mythical Island in the Sky. With Ballos defeated and the Demon Crown destroyed, the island and its inhabitants return to their peaceful existence. But when the magic seal on Mt. Ebott is broken and monsters begin living on the surface, the Island's true nature and relationship to monsterkind is revealed.

Long ago before the tree withered, monsters also ruled the world. The humans and elves imprisoned them underground before warring against themselves. There was no surprise there was animosity towards humans, or the half-breed that lived among them. The queen's child from a previous love, a human love, what kind of future could such a being create? Both Kratos and his future son.

Uses 21 year old ben (5YL), and "Shadowside" is canon to this (it's just a joke thing where it's Yokai Watch Shadowside but Ben replaces touma, it literally doesn't affect anything besides allowing Ben to use the 4 genma from that) Waking up in a snowy forest, Ben meets Delta Sans and he brings him to the main conflict of Underverse 0.3