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?

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.

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.

Aoki is a quirkless middle schooler who lost his father to a villain attack and almost his mother from a young age, taking care of his younger sister and grandmother as he strives to become a hero in a world that looks down on him for being born quirkless, learning about the true origin of quirks and his family past as DemonSlayers.(Original story from LorenzoJ10"Breath of a Hero")

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.

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.

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]

A Headcanon/Oneshot on if the demon slayer and the MHA universes were the same one.

The artists enter a tattooing competition.

Eri prays for a new life far away, and her pleading is answered, suddenly surrounded by people who need hugs. Kokushibo and Nakime are now parents, Akaza, Doma, and Muzan are uncles, Daki is an aunt, the other two are the odd cousins, and none of them have the slightest clue why she has a horn and where she got powers.

Tokoyami Fumikage and Bakugo Katsuki are pulled into a void, landing in the world of Demon Slayer. Misconceptions are a bitch.

When Izuku Midoriya finally has enough, a demon who hasn't takes the quirkless boys place. Upper Moon Two Doma wakes up in a new body, in a puddle of blood, and Katsuki Bakugo dreads what happened to his friend.

When a mentally unstable pro hero raised by the H.P.S.C. retires via an explosion from the chest and is sent to a world of Demons and Slayers, Kaina Tsutsumi finds herself unsure on how to deal with her current situation.

Denki Kaminari is pulled into the world of Demon Slayer, meeting his pseudo-dad, Midoriya and Eri No. 2.0, his dimensional doppelganger, and Bakugo on steroids. What fun!

An already demonic girl, Himiko Toga, becomes an official Demon, getting the best family she could ever ask for. Tanjiro is conflicted, Genya has social anxiety, and our dear Flower Hashira is still a Hashira. Woop Woop!

Onyotsu an inspiring demon slayer aiming to become a great demon slayer just like her idol shinobu kocho, she has train herself through her idol and practice shinobu's breathing technique insect breathing. Now she is on her way to the demon forest to uphold her test but once she got there she noticed something very unbelievable she couldn't understand

In which Hitoshi Shinsou is reincarnated as Hitoshi Kamado, and is the moon to Tanjiro Kamado's sun.

No true summary yet. Original characters! Demon SlayerDeku! Deku has a Quirk! FemaleDeku!

So basically Zenitau get reincarnated in the world of MHA and becomes a hero and accomplishes his will.

Hizashi and his fellow UA staff members are drawn into a conflict that was spawned centuries before the era of quirks first began when a mysterious demon girl seeks to capture another one of Hizashi's friends that his co-workers are surprised he has. (Sequel to 'Hizashi Yamada vs. the zombie apocalypse') (Crossover with Demon Slayer) (Crack fic elements) (Rating pending)