This is the story tells about the human and demon siblings who'll make their journey of saving the world by becoming 'Kamen Rider Demon Slayer' to combat against the villains who seek to conquer the world using the powers of the devils. (Rated 18 for violence, gore, and leaned towards mature themes)

So... what can math do? Will I ever need this out in the real world? What can math do for me? Well this is a story about answering such questions! Or my story on how I rose to power by working through horrible pain to become a winner. (Start world KonoSuba, current Kimetsu No Yaiba)(Part of the Dark Guard reality)

Regrets? He had a few. Happy memories, perhaps less. He had a goal, however: tying up a loose end and fixing his biggest mistake. With the start of the Taishō Period, his hand has been forced. After a millennium, it wouldn't be the first time. But Naruto will make sure it'll be the last. NarutoxHarem

Sakura Haruno lands in another universe courtesy of Kaguya Otsutsuki. This time she lands broken and nearly dying where a Demon finds her, who subsequently turns her into a Demon herself who can walk under the Sun due to the chakra running through her veins. She is an anomaly in a cruel world without chakra and now she must find a way back to her own world with the help of others.

Haruno Sakura is reborn as Nezuko and the only person who has chakra in a world deprived of it. When she is turned into a demon against her will, Nezuko finds herself capable of walking beneath the sun. Her life turns more dangerous when all the Demons and the Demon Slayers Corps want to weaponize her due to her capabilities. All the while Nezuko just wants to protect her brother.

In Modern Japan, the fight between demons and demon slayers is going on and has been current ever since the taisho period. At the same time, battles between good and bad shinobi, and battles between shinobi and yoma are also occurring. Both a happening separately, but what happens when a demon slayer by the name Taiyou Tsugikuni comes to investigate Hanzo Academy? lets find out

The title basically summoned it up. This is a story of Fairy Tail Guild watching Kimetsu no Yaiba (Demon Slayer)! Come with them as they followed the Kamado siblings, Tanjiro and Nezuko, and the demon slayers of the KnY world. No pairing for now, just pure reactions

As a child of brightness, Elaine Kamado seemed to bear good fortune. However, when an ancient evil threatens the world, Elaine must fulfill her duty as member of the Demon Slayer Corp and slay it. It seems easy, or so she thinks, especially when a demon sends her back 132 years in time and meets her ancestor: Ciel Phantomhive! Can Ciel help his descendent get back to her own time?

Basically it's a Harry Potter/Demon Slayer fusion, but instead of all of the Demon Slayer cast unrealistically attending Hogwarts (since they don't live in UK), they attend the school of magic in Asia with female Tanjirō and a possible Tanjirō harem.

The almighty Water Pillar, one of the fabled Hashira of the Taisho Era, coming face to face with Muzan Kibutsuji himself. If only he had been strong enough to stop him... Amnesiac, lost, and tossed into the unfamiliar world of Remnant, Giyuu Tomioka must try to navigate life at Beacon– as the same creature in which he despised the most.

Ozai manages to escape from his prison and he manages to get his bending back. He decided to get revenge on Aang by sending him and his friends one by one to another world. One full of monsters that prey on human flesh but there are people who slay them. Can he and his friends manage to survive and hang around these new people? Only time will tell.

Tanjiro(demon) was transported to the Jujutsu Kaisen Universe by a special grade curse called the Vynx. That's it. :/ (I want to finish my other fic before pushing myself to actually update 1/2 times per week)

"He accepted hate in the place of love, Disgrace in the place of honour. A burden where a normal human can lose their mind but not him..." -Kagaya Ubuyashiki- "Tell me where should I go? To the left where nothing is right or to the right where nothing's were left..." -Taishiro Uchiha-

Demons had been invading the ninja world and a team of leaf shinobi were dragged into the demon slayer world and their mission was to stop the demons. With them helping will the demons be defeated or will they fail to stop them?

Tras ser enviado a una misión asignada por el patrón, Kyojuro se embarca en una misión para derrotar al demonio que provoco la muerte de varios espadachines de rango Mizunoto, lo que no esperaba, era que el se sumaria a esas desapariciones.

Story summary inside. Rated T for violence and Hidan's mouth. Also posted in AO3.

Phoenixes have crimson feathers on their body and a golden tail as long as a peacock's. Their claws and beak are gleaming gold. Their scarlet body feathers glow faintly in darkness, while their golden tail feathers are hot to the touch. They are also extremely loyal creatures, and capable of arriving to aid of those who share a similar devotion. Fem. Harry

Sasuke clearly remembered it. He had stopped for a night, making a camp, when he suddenly heard a distant string being played on an instrument. The next thing he knew, he was falling from the sky.

Una niña que lo ha perdido todo en una ciudad en ruinas, encontrará en dos opuestos lo que más anhela para seguir teniendo esperanza

After defeating Kaido and bring peace to Wano all the members from the Pirate Ninja Mink Samurai alliance just want to relax and party. However, a mysterious Wano legend appears out of the blue and shocks them. A gateway towards a new dimension where demons appear, the members of the alliance are all dragged towards this dimension and fight against the horrible demons.

After being told that he can't be a hero by All Might, Izuku ends up in a state of depression. One night after a walk he bumps into a pale man who turns out to be the leader of the demons named Muzan. Izuku while fleeing from the demons is saved by the Hashira, who work in the shadows of the hero society. Now the powerful samurai will teach Izuku how to become a strong hero.

No matter where he found himself, one truth remained: the world was a cruel, dark place. A fighter since his youth, death and loss was all he ever knew. And now, stranded in another world, he faces a new reality. One not too different from the one he'd left behind.

Some people would call Lelouch Vi Britannia many things: a liar, backstabber, tyrant, and others when he began his path of revenge. But what if He experienced someone else's life and knows that person's endeavor would make him a better person in life? This is how it Began.

Akaza in My Hero Academia. Akaza's backstory except instead of attacking the rival dojo he leans towards becoming someone good instead. I've really been wanting to try out this concept cause I love it.

Eren and Zeke after their deaths were reincarnated into a world with demons instead of titans like titans they feasted on humanity, Zeke having a recollection of his past life unlike his younger brother sought them to become the strongest, when Eren is badly injured by a swordsman he does the only thing that would save his little brother's life and his, he became a demon. KNY x SNK