1 - 20 of 269 Works in Light Blue Soul Human (Undertale)
Navigation
Listing Works
-
Tags
Summary
The second human to fall is granted permission to live.
(I really liked my concept and decided to do something with it. Rated teen for swearing and heavier topics.)
-
Diverging Paths - Start of HOPE by YellowSaga
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Undertale (Video Game), Celeste (Video Game), Cuphead (Video Game), Shovel Knight, Hollow Knight (Video Games), Dead Cells (Video Game), Hyper Light Drifter, OneShot (Video Game), Five Nights at Freddy's, Friday Night Funkin' (Video Game), Indie Cross (Web Series), SCP Foundation, Battle For Dream Island (Web Series), Deltarune (Video Game), Persona Series, Sonic the Hedgehog - All Media Types
28 Jul 2025
Tags
Summary
A fallen human
A fallen child
6 lost souls converge into one.
8 souls start the beginning of HOPEVigilantes rise in a place they should not be.
Rifts torn.
The Sun Lost.
But still they have HOPE.One echoes throughout the halls.
One Flower to rule them all.
The world is their plaything, but they will not fall.
The World Refused.
The World has HOPE.
(Hello everyone, this is YellowSaga, and thank you for reading or even just considering my fanfic, this is my first work so constructive criticism is appreciated and I will rewrite chapters if I have to, anyways, hope you enjoy and thanks again.)
Also I will try to update weekly or bi-weekly, but I can't make any promises, other than this definitely won't be abandoned, it will be on hiatus at worse.Also there may be major or minor spoilers for all the above fandoms and possibly others (I couldn’t fit all the characters) found in the notes chapters, you have been warned.
Series
- Part 1 of Diverging Paths - Series
-
Tags
Summary
The Seven (Plus Chara) have done it; they've ended the imprisonment of all monsters. With Frisk as their ambassador (and Papyrus as mascot), things are sure looking up!
But in the background, things are at play, events that could threaten everyone's happy ending.
After all, just because one story ends it does not mean the Tale has.
Series
- Part 2 of Hall of the Seven
-
UnderTime by WalrusSilverfish
Fandoms: UnderTime (by WalrusSilverfish), Undertale (Video Game)
20 Jul 2025
Tags
-
Tags
Summary
7 Humans. A monster. And a Prince of the Dark.
That is what's needed to seal the fountains.
But... what happens when you throw a scorpion with a not so fun past in the party? Laughter will be shared, angst will be there, and budding relationships between certain characters blossom, both canon and non-canon!
Join the cast of both Canon and non-canon characters through the Dark Worlds!
(Grouptale AU, but with a twist, as well as first and third-person POVs!)
-
Lore sheet for characters in our stories(in progress) by The_Nightmare_heart
Fandoms: Hollow Knight (Video Games), Undertale (Video Game), Hazbin Hotel (Cartoon), Helluva Boss (Web Series), Cult of the Lamb (Video Game), Little Nightmares (Video Games), Don't Starve (Video Games), Original Work
15 Jul 2025
Tags
Summary
WARNING: Not done, in the process of writing both chapters.
Series
- Part 1 of The World that is and its stories
-
Tags
Summary
Staring up at the King to blearily smile at him.
Angrily watching the golden flowers grow red with blood.
Eyes slipping shut after a long, painful fight.
Collapsing to the street with the prayer of bought time.
Tripping with nowhere left to run.
Seeing blossoms fall over a scene for the last time.
They were supposed to die, their stories thrown to the whims of history.
But they refused, the books reopening after years to add new chapters to the tales.TLDR: a semi-anthology of one-shots about the Souls, their rebirth, and adjustments to their new lives.
Series
- Part 4 of Battle Scars
-
Once fallen, they never return. by RottenFl4wers
Fandoms: Undertale (Video Game), Mahou Shoujo Madoka Magika | Puella Magi Madoka Magica
02 Jul 2025
Tags
Summary
After the war between humans and monsters, the world forgot magic — until the underground became home to those whose souls reflect both light... and hatred.
What path will they choose — pacifism, vengeance, or oblivion?
Kindness may fade into apathy.
Determination may rot into indifference.
And magic... may become a curse. -
Tags
Summary
“Long ago, two races ruled the earth, humans and monsters. But there was a third race that was rarely known, they were known as aethers, a hybrid between the two, born when people from the two race fall in love. Decades before the monster/human war, there used to be millions of them, before the human prince ordered to have them slaughtered, leaving them a dying species. When the now king eventually waged war against the monsters, he used the rest of the living aethers to seal them underground, forcing them to give up their loved ones. Shortly after this, the aethers and the kings subjects mutinied against the evil king, putting an end to his reign, but not without great cost, as there was now only half a dozen aethers left, not enough to break the barrier. But they swore a vow, that someday, they’ll save their family and friends, along with all of monster kind. Many centuries later, on top of mount ebott, a mountain that says whoever ends up going there never returns. a young girl ends up climbing the mountain, in hopes of finding out what happened to the 7 missing children. But nothing could ever prepare her for the adventure ahead.”
-
Tags
Summary
What if Kris wasn't the only human in town? What if these other humans happened to be six certain human SOULS? And what would happen if these humans joined Kris and their friends to the Dark World? Could they be the foretold heroes of destiny, or destroy the very world itself... [Spiritual sequel to Grouptale!]
Series
- Part 2 of Grouptale
-
Undertale: Hearts and Souls by UnknownOrigin0410
Fandoms: Undertale (Video Game), Undertale Yellow, Undertale: Red and Yellow, Kingdom Hearts (Video Games), Disney - All Media Types, pixar movies - Fandom, Dreamworks movies
30 Jun 2025
Tags
Summary
It has been over a year since Frisk freed the monsters from the Underground. Throughout said year Frisk has had to act as the ambassador for all of monster-kind, doing their best to ensure that monsters were getting the rights they deserved in order to properly be integrated with life on the surface. Things were going great, and a picnic with the friends that Frisk had made throughout their journey was in order to celebrate everything they have managed to accomplish so far. That is, until Heartless begin to invade the world and drag it into darkness, separating Frisk and Chara from the others as they find themselves in a strange world and obtaining the ability to wield a weapon known as the keyblade. While reluctant to fight against this dark threat, Frisk and Chara must traverse worlds with the help of others who have been facing the darkness for a long time, all in the hopes of finding their friends and family as well as bringing back their world from the clutches of darkness.
-
DigiTale: The Chosen Children by Zennistrad
Fandoms: Undertale (Video Game), Digimon Adventure, Digimon - All Media Types, Undertale Yellow (Video Game)
22 Jun 2025
Tags
Summary
A group of children, each having met a tragic end beneath Mount Ebott, find themselves mysteriously resurrected in a faraway land.
What follows is an adventure that will determine the fate of both worlds.
Even with these unreliable wings, covered in images that tend to stay
I'm sure we can fly
On My LoveSeries
- Part 1 of DigiTale
-
Tags
Summary
The King and Queen disappear seemingly overnight.
Despite the councils efforts, the two heirs attempts, and the long wasted work-nights of Governor Holiday, the Undergrounds struggles increase in severity until drastic measures are needed. After the ruling council's flimsy excuse for their royals' absence, trust in their organization drastically decreases. The Underground grows suspicious, divided, and restless. The Council's hand is all but forced to into a rushed coronation of the two heirs, asking all to leave the era of mourning behind.
Asriel and Chara step up to rule, but on the day of their coronation, a wounded creature of unparalleled power steps through the barrier. Widespread panic, the uncovering of a secret plot, and a growing feud between the two heirs split the Underground apart. Chara's tirade for justice leads them down a darker, darker path, leading a grieving Asriel to pick up the pieces.
When a new human enters the equation, Asriel promises to end this madness for good. Even if that means opposing his best friend, the royal guard, and the entire Underground in the process.
Series
-
Welcome To The Underground (Season 1) by MyLoveForYourFantasy
Fandoms: Undertale (Video Game), Glitchtale Rewrite
05 Jun 2025
Tags
Summary
Hello 👋🏼, & Happy Wednesday Afternoon Everyone, This is gonna be a "Glitchtale Rewrite", with HUGE differences.
This is also heavily inspired by "What is Left Behind" By EmmaSmoke:
https://archive.transformativeworks.org/works/54889081/chapters/139135684&
"Undertale Sevenfold" By Rotengen:
https://archiveofourown.info/series/4149664Series
-
Tags
Summary
After defeating Asriel in battle for what felt like the thousandth time, something new finally happens. Instead of disappearing, a new magic consumes the human souls and gives them life once again. With the barrier broken, they'll be able to go home and get their own happy endings, right? Unfortunately their families were disturbed by the way they came back to life, and because of the time gaps some felt too old to be parents again.
So where do they go? With the monsters that killed them, to "make amends."
Series
- Part 2 of Surface Souls AU
-
Undertale Purple and Green Concept by Tokal
Fandoms: Undertale (Video Game), Undertale Yellow
28 May 2025
Tags
Summary
Basically a concept for a theoretical Purple and Green soul playthrough in Undertale before Undertale Yellow and Undertale's events occur, follow the story of Hope and Sunny as they wander the underground on parallel tracks only destined to cross at the end.
-
Tags
Summary
The year is 202X. The deaths of Chara and Asriel are fresh on Monsterkind's mind, and the environment of the underground is harsher than it will ever be.
Enter the Patience soul, Eleanor. Thrown into a world she is not prepared to exist in, she must desperately struggle to survive in a world hellbent on killing her.
This is my take on the concept of "Undertale Cyan", a story centred around the first of the six human souls to fall into the underground.
A link to the discord: https://discord.gg/NJwZMqME8G. Comments are appreciated!
-
Tags
Summary
This story is fabricated. I may even say the entire world is built on lies. Something, created out of nothing purely to lie for one's own gain, while keeping truth locked away.
In this world, lies are weapons. And I'd say fans of idols are ones of those people. Ones, who like to be fed pretty lies. I'm one of those people.
"The Spirit of Love", an idol group created four years ago, managing to keep their top spot all thanks to their leader. A young, 16 year old boy, Mettaton!
Series
- Part 11 of Trailers
- Language:
- English
- Words:
- 519
- Chapters:
- 1/1
- Hits:
- 10
-
Tags
Summary
Just an ordinary trip to the underground.
Oh yeah! And Frisk has the ghosts of all of the past humans in their head! What could possibly go wrong!
Frisk and the humans adventure around the underground, and help to tie loose ends and help each other with their problems.
Series
- Part 1 of Undertale: Sevenfold
-
Tags
Summary
Toriel has been alone for a while now. Her children have died tragically, and her husband cannot live in the memories that their little home provides.
So when another child falls into the underground, Toriel finds her alone.The story of the second human to die in the underground - the patience soul.