My Hero Academia/僕のヒーローアカデミア and Undertale Crossovers
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The Boney Brothers by DaWarldo Writer reviews
In a bizarre turn of events, Midoriya Izuku's story of becoming the greatest hero was hijacked by two eccentric brothers who stop at nothing to make awful puns and pranks towards the boy while also dragging him into a series of absurd adventures that would make his journey that much more interesting.
Rated: T - English - Adventure/Supernatural - Chapters: 2 - Words: 10,676 - Reviews: 2 - Favs: 15 - Follows: 18 - Updated: 9/15 - Published: 9/13 - Izuku M., Toshinori Y./All Might, Papyrus, Sans
Hero of the nights tide Undyne! by Howeverhell
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
Rated: T - English - Adventure/Humor - Chapters: 1 - Words: 8 - Favs: 5 - Follows: 10 - Published: 8/20
Forsaken Light by La fille du Temps reviews
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)
Rated: M - English - Chapters: 1 - Words: 1,455 - Reviews: 5 - Favs: 12 - Follows: 22 - Published: 7/16 - Toshinori Y./All Might, Shouta A./Eraserhead, 1-A Students, Chara
Undertale multiverse meets with my hero academia by wolffrankie.14 reviews
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.
Rated: T - English - Mystery/Drama - Chapters: 1 - Words: 250 - Reviews: 3 - Favs: 2 - Follows: 4 - Published: 7/6 - Sans, All For One, Izuku M., Toshinori Y./All Might - Complete
When a Rose has to choose between two Thorne's by annie4life
When Rose Bakugo comes home for a vacation she has a choice to make , will she be able to make the right choice I don't own my hero or Undertale I just own Rose my oc Full credit for the summer goes to my friend Dillon editing is done by him and one other friend of mine.
Rated: T - English - Adventure/Romance - Chapters: 4 - Words: 4,009 - Favs: 1 - Follows: 1 - Published: 6/21 - Katsuki B., 1-A Students, OC, Sans
Unamed Mha x Undertale Fanfiction by NoImNotTellingMyActualUsername
Izuku falls into the underground...
Rated: M - English - Angst - Chapters: 2 - Words: 315 - Favs: 2 - Follows: 2 - Published: 4/16 - Izuku M., Chara
Izuku: Hero of Monsters by Evarstar101 reviews
On the day Izuku would have received One For All, another path was taken. After the boy failed to save Bakugou and was berated by the heroes, Izuku left for Mount Ebott on the edge of Mustafu. Taking Bakugou's advice he plummets into the mountains in hopes of a quick end. Unknowing he was in for an adventure of long forgotten history and lost magic.
Rated: T - English - Fantasy/Adventure - Chapters: 2 - Words: 7,314 - Reviews: 14 - Favs: 48 - Follows: 61 - Updated: 4/15 - Published: 4/10 - Izuku M., Toshinori Y./All Might, Katsuki B., Chara
A Blazing A Blue Eye by ZCL9822 reviews
I don't own Undertale or MHA. They are owned by Toby Fox and Kohei Horikoshi respectively. I'm rather garbage at summaries and descriptions, so I guess you'll have to read to find out.
Rated: T - English - Crime/Humor - Chapters: 4 - Words: 3,551 - Reviews: 7 - Favs: 19 - Follows: 27 - Updated: 4/12 - Published: 6/15/2023
Spear of Heroism (Awaiting rewrite) by Insomnia-Personified reviews
Undyne, the Spear of justice, has finally gained enough DETERMINATION to transmigrate herself to a different universe. after the slaughter of her home, she will venture to another universe and try to save it like she couldn't her own. My Hero x Undertale OP! Izumi. Fem! Izuku
Rated: T - English - Adventure - Chapters: 4 - Words: 3,213 - Reviews: 20 - Favs: 68 - Follows: 93 - Updated: 3/19 - Published: 4/12/2023 - Izuku M., 1-A Students, Undyne
Chocolate and Cinnamon by Scrappymocha reviews
What if Izuku had a dog called Mighty and didn't save bakugo? What if Chara wasn't some psychopathic demon and got teleported into Izuku's room? Well that happens in this fic. Looking for a better name lol.
Rated: M - English - Chapters: 2 - Words: 2,541 - Reviews: 21 - Favs: 36 - Follows: 52 - Updated: 9/15/2023 - Published: 8/26/2023 - [Izuku M., Chara]
(Not) Quirk Of Judgement by Burger Tower reviews
Imagine a world where every person with a Quirk is equal to every Quirkless one. A world where no one has to die. A world where Heroes and Villains don't have to exist and no civilian or innocent has to be in a crossfire... Such a world can exist, But everything comes at a price...
Rated: M - English - Adventure - Chapters: 20 - Words: 70,753 - Reviews: 3 - Favs: 35 - Follows: 37 - Updated: 7/23/2023 - Published: 2/16/2023 - [OC, Momo Y.] [Tooru H., M. Ojiro]
Ruby Red Eyes by DazMaZ reviews
The war of Heroes and Villians rages on, but what happens when DETERMINATION appears in their world?
Rated: T - English - Adventure/Friendship - Chapters: 8 - Words: 50,953 - Reviews: 151 - Favs: 485 - Follows: 605 - Updated: 10/10/2022 - Published: 8/28/2020 - Katsuki B., Frisk, Chara
Undertale X Mha (My hero academia) by Black. cat.002 reviews
The title says it all. Sans goes to Mha. There you go. I might be lazy. Won't upload quickly. #lazyauthorchan ...anyway, this is a almost no logic story but if you can bear with it, I'll thank you a lot. Lol
Rated: K - English - Adventure/Crime - Chapters: 7 - Words: 4,336 - Reviews: 10 - Favs: 19 - Follows: 24 - Published: 12/7/2021 - Sans, 1-A Students
Boku no hero academia x Undertale (Un Héroe De Verdad) by Sr. Cuervo Blanco reviews
una historia donde Undyne de Undertale es transportada a Boku no hero academia, por azares del destino debe está junto a izuku. Undyne le ayudará a convertirse en un héroe a izuku. decir más seria spoiler así que espero y lo disfruten
Rated: T - Spanish - Adventure - Chapters: 2 - Words: 11,634 - Reviews: 5 - Follows: 1 - Updated: 10/5/2021 - Published: 9/28/2021
Prueba by kevinhero393
Z
Rated: T - Spanish - Poetry/Mystery - Chapters: 1 - Words: 2,010 - Published: 9/23/2021 - Alphys, Asgore D.
Different Izuku: Reconstruct by Turtle36 reviews
Izuku Midoriya creates rules as he learns about his powers. Then he creates rules in general to live by. Some are random. Some make no sense. However, he at least tries to follow them. Read to find out! A hopefully better version of Different Izuku! Rated M in case I do something crazy with Izuku's Rules.
Rated: M - English - Humor - Chapters: 14 - Words: 10,833 - Reviews: 35 - Favs: 215 - Follows: 244 - Updated: 7/10/2021 - Published: 11/11/2020 - Izuku M., Sans, Katsuki B.
The Undying Hero: Dekiru by Valcore Undying reviews
Izuku Midoriya, 15 years old. Ever since he was a kid he always wanted to be a hero like All might. Saving people with a smile, but now it's more his dream has gotten bigger! He wants to be the new symbol and it isn't just peace but our hopes and dreams as well and he wants to change the society for how they treat people who are quirkless. But can he even achieve that? Find out!
Rated: M - English - Drama/Romance - Chapters: 3 - Words: 13,571 - Reviews: 9 - Favs: 71 - Follows: 83 - Updated: 6/22/2021 - Published: 6/21/2021 - [Izuku M., Melissa S.] Undyne, Temmie
Into the void by Halfdecent reviews
This is not the usual story of the boy who inherits a power passed down through generations. No, this is the story of Izuku ‘nightmare’ Midoriya and his quest to try to SAVE as many people as possible. Nightmare sans!izuku story
Rated: T - English - Adventure - Chapters: 1 - Words: 1,213 - Reviews: 7 - Favs: 39 - Follows: 52 - Published: 6/6/2021 - Izuku M., 1-A Students, Sans
The Purple Door by Golden Wind Requiem reviews
Mineta Minoru dies... But someone is watching. (SHORT ONE SHOT)
Rated: T - English - Horror/Suspense - Chapters: 2 - Words: 1,174 - Reviews: 7 - Favs: 7 - Follows: 4 - Updated: 5/25/2021 - Published: 5/23/2021 - Minoru M., Chara - Complete
Blooming Despair by blackknight99 reviews
Sometimes if you want to break a cycle, you need to throw a really big wrench in the works. Or in Flowey's case, kill the human before they can even process what happened. Unfortunately, this also leads to a series of events that lead to a certain broccoli boy becoming the inheritor of Flowey's ideology instead of One For All. Is the world and its heroes ready to kill or be killed?
Rated: M - English - Fantasy/Supernatural - Chapters: 2 - Words: 18,446 - Reviews: 20 - Favs: 28 - Follows: 41 - Updated: 12/9/2020 - Published: 10/18/2020 - Izuku M., Flowey
Different Izuku by Turtle36 reviews
One Shots . Katsuki Bakugo learns some rules. Some have to learn about them the hard way. Some gain more understanding that the cinnamon roll can have a bad side.
Rated: M - English - Parody/Mystery - Chapters: 11 - Words: 8,724 - Reviews: 26 - Favs: 170 - Follows: 160 - Updated: 11/11/2020 - Published: 2/14/2019 - Izuku M., Villain Alliance, 1-A Students - Complete
MHA X undertale by ME05IDK reviews
what if i put sans as a character in my hero academia. mild cursing and violence. the first few chapters are not very good. this story is done.
Rated: T - English - Supernatural - Chapters: 13 - Words: 23,182 - Reviews: 11 - Favs: 41 - Follows: 46 - Updated: 10/23/2020 - Published: 2/24/2020 - Complete
Izuku Of The Underground by A-BONEly-dude reviews
Izuku knew that everybody wanted him to give up, they thought that he could not be a hero. But he was too stuborn for his own good so he persevered with his wits and determination, because god dammit he was going to try even if he was fated to fail. He was not disappointed with the results. Disclaimer: I don't own anything. Just the idea
Rated: M - English - Adventure/Sci-Fi - Chapters: 4 - Words: 13,895 - Reviews: 11 - Favs: 88 - Follows: 96 - Updated: 10/22/2020 - Published: 12/2/2019
My Undertale Academia by Ammolite Stone 487
When an incident destroys two schools the students were allowed to choose what school to go to. Of course a lot of them chose UA since they all wanted to be heroes. But when a new villain arises will class A and the transfers stop it? Or will the world be under mind control?
Rated: T - English - Humor/Family - Chapters: 5 - Words: 5,995 - Favs: 9 - Follows: 7 - Updated: 9/23/2020 - Published: 4/12/2020
My Hero Academia Meets Undertale by RandomPotatoKid reviews
My second book ever :) Monster Society meets The society of Quirks and heroes. Everything seems well and good, but a demon lies in nothingness, watching from the shadows...
Rated: T - English - Supernatural/Drama - Chapters: 4 - Words: 9,600 - Reviews: 12 - Favs: 54 - Follows: 63 - Updated: 8/13/2020 - Published: 8/5/2018 - Chara, Sans, Izuku M., Ochako U.
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