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Tanjiro but in undertale by Lightyagamisgodcomplex
Fandoms: Undertale (Video Game), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime & Manga)
05 May 2026
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Summary
On a mission, Tanjiro Kamado falls into a deep hole and is greeted by a talking flower.
Or
Tanjiro in undertale
Timeline: before frisk, post hashira training, no infinite castle.
- Language:
- English
- Words:
- 1,812
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 0
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Summary
The city of Daiport has many things to brag about. It's ancient history, the beautiful mountain ranges and of course, the glistening ocean beaches that hug a good portion of the city's outskirts.
It's also the home of the monsters that emerged from deep within Mount Ebott.
You, having left your strict family upbringing to chase after your love for the ocean and a dream to become a professional dance choreographer, find yourself in a city quite unlike any other. But life continues much as it always has since you moved here. You work in the local surf shop, train for the biggest dance competition of your life, and spend all of your free time in the water. That is, until a chance encounter leads you to meet a monster who turns up the heat in your life.
As for said monster? He's never met a human with hair as bright as his flames. He finds himself drawn to you for reasons he can't fully understand. So the question you both have to wonder is:
What happens when water and fire collide?
Part 1: Chapter 1-33
Part 2: Chapter 34-49
Part 3: Chapter 50-We're back baby
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Hope can be a difficult thing in the face of adversity. Hope can be painful.
For some, it's easier to let go of the pain of what could be different and focus on the wall of pain that is. For others, hope is needed to hold back the landslide behind a fragile wall, so they can keep moving forward and make that hope into the reality they want to see.
A very vague summary to avoid spoilers, because this is a continuation of a large cliffhanger in this series.
**This is NOT a stand-alone fic and can't be read as such! But it does mean there’s plenty more story to read first!**
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Two souls meet in the underworld after breaking under the promise of heaven.
Series
- Part 3 of Kit's UTY Oneshots
- Language:
- English
- Words:
- 986
- Chapters:
- 1/1
- Hits:
- 34
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UDY on the Surface by CommanderBullet
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game), Deltarune (Video Game)
04 May 2026
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It's been a few years since Monsters returned to the Surface and lots of things have changed... Accompany your favorite characters from Undertale, Undertale Yellow and Deltarune as they try to manage their everyday responsibilities and go through a few wacky adventures while at it in this slice-of-life crossover AU.
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Summary
I'm just gonna explain a few things about this series.
This story will be a month or 2 after Frisk fell down.
Everyone is still underground. (For now hint hint)
My oc will be a little girl named Charlotte that was hiking with her mother but ended up getting lost and fell into the hole.
Charlotte has long brown hair, red eyes, a scar that goes across their left eye, 5 years old, extremely talented, loves singing and playing intrsuments, survivalist, doesn't show emotions very good, adult like attitude, Empatheitc, helps others when wants too, and only talks when she wants too.
Charlotte's parents aren't the best. (Literally)
Some things may be confusing in the story, but please roll with me! Thank you!
I think that's it for an explanation.
The story will start with Charlotte finding the hole and falling.
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After the events of Undertale Yellow Clover survives and goes into hiding. 20 years later not only had he found a family that cared for him, he found love with his best friend Martlet. Soon the people of the Underground notice that humans have stopped falling into the Underground causing them to become desperate. Now Clover and Martlet must keep themselves and their son Callum hidden from Asgore to prevent their family from being torn apart.
Series
- Part 2 of Tales of a Hybrid
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This is a NOT SATIRE deltarune remix of the Sold to One Direction trope.
The fun gang sell Kris' red soul towards Jevil and Seam.
The kings are unsure of this, EVEN TENNA WAS WEIRDED TF OUT.
and kris' soul cost a WHOPPING "$420.97 KROMERS". i don't know how this would happen, but okay even the DIVAS are HERE!!!! -
Airwaves & Airmail by Sumochkamoya
Fandoms: Deltarune (Video Game), Undertale (Video Game)
04 May 2026
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Summary
Frisk fell into the trash heap in a desperate attempt to escape a spear-wielding Undyne.
She expected to find a way out, but instead, she found two complete weirdos.
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Crimson Justice by guardianLegacyAZ_0779
Fandoms: Undertale Yellow (Master Sword Video Game), Undertale (Video Game)
04 May 2026
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Summary
In this story, Frisk is replaced by Berry. I originally had a different story, but I rewrote it. In this story, Clover falls a week before Berry, and currently lives with the monsters. What happens when a human being so full of justice meets another hurt by injustice?
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Summary
(rewritten)
Trapped in a hostile cold war between humans and monsters, you've been left behind in the city of Ebott, cordoned off as a monster-zone. Too young and too penniless to move away, you and your brother survived mostly on the kindness of Grillby, who gave you a job in secret.
But secrets never stay hidden for long in a city like Ebott. Especially not around a nosy skeleton who's decided not to be lazy for 'human-hunting' any longer.
my take on a darker aftermath of the true ending.
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The first story of the series. Follows our protagonist through his rebirth and until he (re)enters the Multiverse.
The Major Character Death Warning is temporary and happens multiple times btw, it is a little confusing at first but you will understand as the story continues.Prologue: Rootverse's Collapse (1)
Arc 1: Rebirth (2-7)
Arc 2: Meeting Familiar Faces (8-80)
- Sub Arc 2.1: The Teeth Incident (20-41)
- Sub Arc 2.2: The Magic Incident (42-50)
- Sub Arc 2.3: Time For Shopping (51-59)
- Intermission: 1st Major Time Skip (60-62)
- Sub Arc 2.4: The First Human (63-80)
Arc 3: The Tragedies That Follow (81-?)
- Intermission: 2nd Major Time Skip (90)
- Sub Arc 3.1: The Six Souls (91-?)Series
- Part 1 of Miseries of Metempsychosis
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Redemption and Revolution by thevideogameempire
Fandoms: Undertale (Video Game), Undertale Yellow
04 May 2026
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Summary
It’s done, after all these years, monster kind can finally be free of their prison in the underground. But not all is well. A specter from the past haunts Frisk, and only by learning to move on from the past that never was can they both find peace. Meanwhile, another specter haunts the world. A war is brewing once again between the ways of old, and the way of the future. Dreams of world revolution and a classless society reignite, and soon the world will be divided between those who wish for a brighter future, and those who cling desperately to their own past that never was. Soon, the recently emerged monsters will need to choose what role they will play in this conflict, and what their place will be in the world.
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Undertale Purple - Perseverance by AnonymousWriter08
Fandoms: OMORI (Video Game), Undertale (Video Game)
03 May 2026
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Summary
A long time ago... humans and monsters lived in harmony. Until war broke between the two races.
The humans were victorious and sealed monsterkind deep underground with a powerful spell, that could only be broken with the power of seven human souls.
This was the tale of Mt. Ebott, and the tale trascended into legend. Those who climbed the mountain, weren't seen again.
And so, begins the tale of the fifth human soul to fall into the land of legend, to fall... into the Underground.
This is the tale of the Purple Soul... Sunny Suzuki.
NOTE:
Currently being rewritten
Suggestions are welcome :)Rewritten chapters: 3 of 21
[IN HIATUS] -
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Certativus: [kɛr.taːˈtiː.weː] In order to stir up strife, combatively.
For years Mt. Ebott has swallowed the sorrow, the mourning, the grief that mankind has gushed. Legends pass through the air, for those that enter, whether that be glory or greed, none return. Children disappear in the depths of night. Forgotten.
They do not remember the trek into the forest, nor the fall that followed it. But, for a mountain supposed to be empty, they are certainly not alone.
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Dust has never had an easy life. But when Papyrus, the one thing that was good in his life, died things only ever seemed to get worse. After his mother decided to move away from the house that only brought bad memories, Dust has to get used to a new school. He quickly finds himself drowning under the pressure of bullies and his home life but maybe…amidst this suffocating sea, he can find friends to help him through this.
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Can love blossom without darkness? by TheObsessiveKrusieShipper
Fandoms: Deltarune (Video Game)
03 May 2026
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Summary
It was all thanks to their first fateful journey through a Dark World that Kris and Susie ended up becoming as close as they did. It was what made Susie open herself up and end up becoming Kris’ truest friend. So, what if? What if, in another reality, there was no such thing as Darkworlds? In such a world, how would Kris and Susie get along, without darkness to bind them? Could their bond still blossom?
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A new, green SOUL, appears 2 days prior to the main events of DELTARUNE in Hometown. Appeared in a cardboard box on the road, they get taken in by Undyne as they make friends with Noelle and other classmates.
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It’s been just a day since Asriel’s life turned right way up again. Monsters have returned to the Surface at long last, himself included. He’s got his best friends—new and old—by his side, and both his body and SOUL have been restored to him. There should be nothing left to worry about.
But new threats loom and old habits die hard. It’s been a very long time since Asriel’s been able to trust anyone else to deal with problems. Especially when there are so many secrets that nobody can be allowed to uncover… and one that Asriel can’t bring himself to face.
Series
- Part 2 of Et Tertia Non Datur
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A Little Slice of Butterscotch-Cinnamon Life by writtenfanworksofGab
Fandoms: Undertale (Video Game)
03 May 2026
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Summary
Have you ever wondered what scrolling through Undernet would look like? Wanted to know what the monsters are doing after they were all set free? Daydreamed about getting little updates on everyone's post pacifist day to day life? Then this is the fic for you!