What happens when someone reincarnates into a demon, will he survive in this world full of powerful people or die? Well let's wait and see if he can become the strongest demon in this world and maybe create his own organization

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.

El heredero legítimo del Clan Uchiha, deserta de su aldea con las manos manchadas de sangre. Yéndose a otra dimensión, iniciando una nueva travesía, en un lugar donde la noche es reinada por criaturas devora hombres, conocidas como Oni (Demonios).

{Naruto / Nezuko} Naruto and Tanjiro struggle to keep both Nezuko and a Book, which may hold the origins of all demon kind within its bloody pages, out of the hands of an unholy alliance between Muzan and Orochimaru; all the while Naruto comes to know this peculiar girl who may be even more demonic than he is! [& Other Pairings] ((12: Darkest Just Before Dawn))

Kurosaki Masaki's mother came from the Kochō family, a slightly recent but no less skilled family in the Demon Slaying World, and Ichigo imitates and changes himself to be more like his mother after she died, but still every bit of a protector as he always is. This changes things... obviously. As always, it's the butterfly (Kurosaki) effect.

I put Jojo and Demon Slayer characters against eachother.

Muzan Kibutsuji was dead- dying at the hands of The Demon Slayers after warring with them for over 1000 Years. When he died, he knew full well that he was never going to reincarnate... or so he believed! After an untold amount of time in the void, a strange voice gave him a choice, remain in the void for the rest of time? Or... become reborn. He chose the latter.

In one world, two brothers journey to fix themselves. In another, a pair of siblings must find a way to restore the sister's humanity. After an encounter with a mysterious woman, the two pairs of siblings find themselves lost in a world that seems much like their own.

Remnant is a cruel world. The creatures of Grimm terrorize its citizens, the demons come along to make things worse. But the Huntsmen of the four main kingdoms and the Demon Slayers of the fifth kingdom, Japan, work together to vanquish their enemies. Centuries later, a Huntress in training and a new Demon Slayer, along with their comrades, must bring peace to Remnant once again.

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.

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.

Rengoku Kyojuro piensa que Hyuga Hinata es la chica más hermosa que podria llegar a conocer. AU

When faced with a near-impossible threat, It falls upon the most unlikely of heroes to rise up and face it. Bound with nothing but the knowledge of the future, Josuke is thrown into a time that not many can recall; forced to face an age-old enemy in the hopes to save the future from its hidden past.(Check back every week for new chapters!)

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

This crossover takes place after the Goku Black arc Dragon Ball Super and at the start of Kimetsu no Yaiba. Also it's an alternative Dragon Ball Super timeline part involving non-canon characters. Plus Dragon Ball Heroes is also involved. Story also available on Wattpad. Discontinued.

After centuries of defeating Muzan and traveling the world as a Demon, Tanjiro Kamado decides to live a steady life in New York, living his days in peace. The last thing he wasn't expecting was to see some espionage named Shield asking him if he wanted to join a certain initiative.

After choosing to stay in the Feudal Era, the Bone-Eater's Well had ceased to function. Or at least, so Kagome thought. A month after the battle with Naraku, the group encounters a bizarre man. Following this confrontation, the Bone-Eater's Well sends them to a different time period. What adventures now await Kagome in this new era?

Humans believed in the idea of reincarnation, and when humanity once thrived, there was a genre called "isekai." 2B had no real reason to learn about things unrelated to her objectives. She was a machine. She didn't have a soul. Someone upstairs thought otherwise. Her mission had not changed, even as a reborn human in a world inhabited by demons. Glory to mankind

This happens after Class 1A start working as Heroes. But someone or something started prowling the streets at night... (I have only seen mha until season 3 so don't blame me if it's inaccurate ;-;) (Villain Tanjiro AU don't judge hehe)

The group of Demon Slayers are drawn to a mysterious hole that is a portal to another world that is called Upside Down . The group soon meets up with a group of kids and a mysterious girl named Eleven. They soon take refuge in a little city named Hawkins, and while trying to find a way home they try to find a boy named Will and face all kinds of mosnters.

- I don't have a summary at this point in time-

Acompañen a Akaza a esta nueva aventura donde con el objetivo de estar con su amada en muerte hace que cambie de mundo junto con una persona que lo va a acompañar durante su travecia.

Shirou Emiya, the person who arguably got isekaied the most in Type Moon's history. Isekai sounds fun right? Meet new people and get awesome power. An never ending adventure for our Hero of Justice. But what if, instead of just Shirou Emiya, everyone got isekaied. How will the world react if instead of getting hit by a wrench, the world got hit by an entire toolbox.

Tanjiro(demon) was transported to the Jujutsu Kaisen Universe by a special grade curse called the Vynx. That's it. :/ (Recontinued. Posting soon. Hopefully.)

The time has come. The long-awaited mission has started. What awaits in the train is a nightmare within a nightmare itself. Who will win? The Demons? Or The Slayers? [Kimetsu No Yaiba x BoBoiBoy Galaxy] [Direct sequel to Demon Slayer: BoBoiBoy] DISCLAIMER: Demon Slayer: Kimetsu No Yaiba belongs to Ufotable, manga written by Gotōge. BoBoiBoy/Galaxy belongs to Animonsta Studios.