This is a Mashup reaction fanfiction in which MHA world react to Demon slayer story as there world's past .

Aoyama Yuito Daichi was just a normal teenager—an otaku with big dreams and zero athletic ability—until the day he was hit by a truck (yes, the cliché). When he woke up, he wasn't in his world anymore. He was in My Hero Academia, the land of quirks, heroes, and endless possibilities. 1st world(main)- My Hero Academia 2nd- Demon Slayer 3rd-?

In a world where demons used to exist, normal people have now developed super natural abilities. One of these people is a boy named Izuku Midoriya. By slight chance, he meets a descendant of the demon slayers. What happens when he gets wrapped up in a war thought to have ended long ago?

OCs ( Lucas and Catherine) are mine. slight manga spoilers for KNY. All rights reserved. Credits belong to the author of Kimetsu no yaiba (Koyoharu Gotouge) and My Hero Academia( Kohei Horikoshi). I do not own any of the other characters in the book .

Izuku Midoriya was born with a strange quirk, and he is subject to many difficulties. Let's join Izuku on his journey as he overcomes his troublesome past and moves to a brighter future. On the path of a HERO!

Izuku is weak. Pathetic. Quirkless. He knows that, he knows that no matter what, he'll never really be a hero. But all that changes through one sheer aft of kindness. Armed with a book guiding him to secrets from the past, maybe, just maybe, he can be a hero. But not all things that return from the past are good...

Bully made Izuku eat a creepy fruit as an example of his status. This fruit that the bully made Izuku eat somehow gave him a chance to pass through worlds. And he will train in them to gain strength for out defense.

Izuku Midoriya was born with a demonic quirk and was shunned and neglected his whole life. Lets see how his life continues as he left his old life behind.

Izuku Yagi lived a happy life along with his sister Izumi Yagi and his friends the Todoroki's twins and the Bakugo's twins. Until one day, the day of his 4th birthday, he was diagnosticed quirkless. All of his dreams were crushed thanks to one word. But little did he know that yes he didn't have a quirk but something greater than that. Original author Reygne

Muichiro Tokito’s Tsuguko, Samuel, Wakes up in another world. Not being able to remember anything, he starts his journey to figure out why he is here. But with demons showing up in this world as well, will he be able to stop them by himself? Or will he need help from the heroes of this world? (OC)

Every day while Inko yagi was pregnant she prayed to the goddess of the sun for the prosperity of her babies and for the safety of Everyone against the evil that was all for one 9 months later izuku tsugikuni was born, many years earlier than his cannon counterpart and with a strange mark on his head How will the hero world react as a quirkless boy forms the greatest Vigilantegroup

Izuku Midoriya a normal boy till the age of four when he was abandoned in a forest by parents. Was left to die that is what he thinks he has been there for 12years.With no human contact he conquered the forest and became a king till a group shows up and disturbs his peace. THIS STORY IS NOT MINE it belongs to redpan45 on Wattpad check him out.

The reincarnation of the Mist Hashira Murichio Tokito, Izuku Midoriya, wanted nothing more than to help others. However, in a world of miraculous superpowers called quirks, Izuku was quirkless. A demon twice removed from the Progenitor, Hitoshi Shinsou, yearned to be a hero despite his villainous aspects. Will the demon and the Demon Slayer achieve their dreams?

"Gehahah! Who wants a piece of me!" -Inosuke, probably. one shot fic surounding a very (not) sane student

In the World of Hero’s everything seems normal but in the darkness Demon hide in it. The demon king turned hero in training into a demon but with unforeseen consequences (Up for Adoption)

Izuku gets hit by a quirk that sticks a person in his head. It's not as fun as it sounds.

MC reincarnates as Deku, he was ready to become a hero without any Quirk but some things don't make sense. "What do you mean I'm not Quirkless?" "Whose the number one hero!" minor Demon Slayer cross over cuz I forgot Mirio existed. [MHA AU SI]

Izuku Midoriya the fighting hero. Not every hero is how someone thinks because not everyone is in a world with superpowers that can be mutated by those superpowers. up for adoption

Hitoshi is a demon, and sometimes he wishes for a swordsman to come along and put him out of his misery. He becomes a hero student in an attempt to cure his boredom. He ends up becoming the impromptu parent of nineteen students and an exasperated teacher. The results have been… mixed.

O vento ia aumentando a intensidade à medida que ele ganhava altitude, soprando rajadas de neve em seu rosto e congelando as mechas úmidas dos cabelos loiros.

Nezuko Kamado Is a Demon. When fighting the upper moons five and four Nezuko starts to burn in the sun. Upper moon four Hantengu felt bad for her and used the last of his power to teleport her into the world of heroes. But on the hero's end, Deku becomes a villain and wants to kill Bakugo. What will happen? Will Nezuko help the heroes or Villain Deku? Read to figure it out.

Class 1-A were fighting villains When Bakugou was sucked into a portal Now look where he ends up in the world of Demon Slayers Y/N X Bakugo

The rip-off of The Lost Hero. Please Read first. Thanks

Four-year-old Izumi was living the life. She was well liked, great grades, friends with even the very crass Bakugou Katsuki, but one night her mother is murdered and eaten by a demon. What happens when the current Sun Hashira saves her and trains her in the ways of the Demon Slayer Corps? (Rated M for extreme violence and gore, harsh language. You have been warned.)

Zenitsu, Genya, Kaigaku, Sanemi, and Giyuu are teleported to the MHA universe, while in the midst of the Infinity Castle Battle. Ha ha, what could possibly go wrong? Apparently everything. (This is satire, I swear-) [Contains SaneGiyuu, and possibly crossover pairings]