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

After fighting in Chara's genocide run for what seemed like a lifetime now, Sans devised a new plan to get rid of the wraith, in the hopes of giving his brother a happier life. In doing so, there were unintentional side effects and Sans found himself in an entirely new world. Undertale—more specifically, Sans, meet the Marvel Cinematic Universe.

Critical point has been reached. BC Freedom no longer could remain in a way it was after Oarai smashed their last attempt at achieving anything in Sensha-do. However, a likely enigmatic source of change happen to come in aid throu accident, causing another ones to follow thanks to very peculiar girl earning an even more peculiar being in her soul...

After leaving BC Freedom Academy because of it's toxicity, Andou had to find a new answer to the troublesome necessity of finding herself a highschool. And what place could be the answer if not ambitious highschool far away south with talented students, questionably powerful leader and new Sensha-do team being created from leftovers? (AU after Das Finale)

The barrier has been destroyed, and the monsters now live on the surface in peace with humans. Shido Dreemurr, hero of the monsters, is living his normal life with the monsters and humans. Until one day, he decides to check out the phenomenon called Spacequakes out of curiosity.

After his friends moved into the castle with him, even Ralsei's days off are filled with craziness. But he wouldn't have it any other way. Just a silly little oneshot set in the Hopes, Dreams, And DELTARUNE universe.

You are not a hero, yet here you are with a happy ending. Or, Rachel, and the aftermath with the monsters. Part of "you are more than a broken glass flower"

A Tenno made a bad jump through a Void storm sending them to a different dimension where normal humans and magical monsters exist. The Operator set out on a personal mission to find out the truth of what had transpired between the two races. Seek the man that speaks in hands and the darkness of the void that traps him there. Time fluctuations stop them by any means.

The Minus Among Minuses And The Cute Loveless Has Taken Quite The Fall Underground (I Own Nothing)

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

after defeating Omega Flowey, Frisk returns to the surface and returned to her normal life. however, her guilt and regret draws her back to the Underground but is followed by a classmate who noticed her strange behavior. This person is Akio Uchiha. what turned into a chance encounter turns into a fight for his life as he ventures to the Underground and back.

Issei y su familia viven en Kuoh viviendo aventuras con las diferentes facciones sobrenaturales, conociendo amigos y enemigos. Summary completo en el primer capitulo. IsseiXHarem, Multi-Crossover(DxD-Undertale, Principal)

Sequel of "The Hope Reborn". Years after Illaster's defeat the Princeton Family seem to do unfinished business with the Anomaly, and Agate who escaped, and are facing a new threat from the Barians, and the Number cards with allies from Astral World, and Yuma Tsukumo. Co-Written with Ulrich362. SharkxOC, RioxOC, YumaxCathy

With the Monsters being released from the Underground by demand from the Wizarding World, Voldemort has gone on a killing spree vanquishing everyone in his path… except one. Her name was Frisk Dearborn and she was known to the public as the Girl Who Lived.

The Avatar has the greatest power of all. Determination. The ability to persist through even the most trying of circumstances. But with the weight of the world on his shoulders, and an equally determined princess after him, will it be enough to restore balance?

Who knew dying could offer new possibilities to monsters? Or more like a second chance like humans have? Now, it sounds cool if only it wasn't for the fact that I have been transported to Hell... as a Human itself. And why is this other smiler so interested in me? Oh well, at least it's a beautiful day outside.

mickey mouse kidnaps asriel and mario must rescue him!

Another war with the bad guys. Ink fought error, as usual. Little did ink know the adventure that awaited him… Rated T just to be safe

Error, the former god of destruction got himself an interesting friendship. He's friends with the pirates that has chaotic tendencies. I do not own One Piece nor Undertale. Be mindful that Error is different from the OG FGOD Error. He has friends.

One girl Fought till her last breath, to avenge the people who she loves. another strive for perfection and approval. what would happen if one was summoned by the other? AU StoryShift!Chara Strong!Chara

error 404 found a new universe he could copy code. instead find a little boy that was similar to his brother. but other undertale God's have found an interest in these new universes. some with good reasons, others with not so Good reasons.

What if Frisk went to the world of Fairy Tail?

After completing the 2 main Undertale routes. Lincoln isn’t the same person anymore. As something happens to him that even slightly changes his appearance. How will his sisters react? Will they accept him for having determination powers after being gone for so long?

Summer and Autumn were very close because both of them are twins... Years passed by, Summer was sent on a mission and didn't came back, Autumn Rose who came from a far location had gone back to Vale to meet her family and lastly her twin, a shocking news that will break Autumn's heart will change her forever however she won't stop until she sees her whether dead or alive

Stories speak of a mountain where children have gone and never returned, unknown of the mystery which lies within it. Now history repeats itself as a child falls but with a twist as another joins...and to think a mild stroll got him into something thought of as fairy tales.