tanjiro becomes a demon fanfiction

Devouring Demons in Demon Slayer

Ryuji a normal guy from Earth, traveled in the world of Demon Slayer, equipped with Hyper-Dimensional System. In his first day he was given a contract with a demon spirit. [Starting Bonus Issued: Demon Slayer Sword x1; Demon Spirit Contract Signed, Obtaining Demon Spirit Devourer] His abilities allow him to consume demons, opening up the path filled with possibilities and challenges for him.

kane45 · Anime & Comics

The Daily Life of the Demon King

Before I write the synopsis, I will leave a few words for those who will read this. Initially, I did not plan to write such a big story, because this is my first experience. But gradually there were readers who read my fanfic, and I wanted to continue, and I gained more and more experience. And now the story is what it is.In the first chapters you will definitely encounter problems like those where I misspelled characters' names or something like that. In the future, all these problems with names will be corrected. But as I already wrote, this is my first experience, and so I hope you will be understanding. Now the synopsis. It all started with the fact that the most ordinary guy, like any other immigrant, died in his past world, and accidentally met God. Alex's wish was quite simple, he wanted a quiet life and wanted to enjoy it without facing other problems that any main characters usually experience. But as always happens, fate has other plans. Unintentionally, Alex interfered with the plans of the villains, not even suspecting where it would lead him, and what he would eventually have to face continuing his path. Just one meeting and one conversation turned Alex's life upside down, forcing him to work for the benefit of other worlds. I'll write this right away for the stupid potatoes who will read this. This is literally my first experience in writing history and something similar. Before this, I only wrote diploma papers and term papers, not counting filling out documents at work, so I apologize in advance if something does not suit you. Enjoy reading! First Arc: DanMachi Second Arc: Cyberpunk: Edgerunners Third Arc: Record of Ragnarok Fourth Arc: The world of zombies- HOTD, Dead Space, Doom, and other stories in this crossover world. Fifth Arc: Supernatural, Twilight, Until Down, Hellsing, Control, Silent Hill and more. Mini Arc, during the Fifth Arc: Borderlands, Bloodborne. The author also created a P*treon and will upload chapters to it ahead of time. Well, and maybe one of the readers would like to treat me to coffee. The author created a p*treon just to earn money for coffee so that I could cope with my ADHD, which always prevents me from thinking normally. All chapters on P*treon are free and all this is done with the goal of collecting donations for coffee. I will upload chapters there in whole packs of 3 chapters. My P*treon p*treon.com/GreedHunter

GreedHunter · Anime & Comics

Minecraft: I Am The Demon King

Xu Yuan, a veteran Minecraft player of eight years, revisits the game after a long hiatus, only to encounter Herobrine in a mineshaft. What initially seemed like a trick of the eyes quickly spiraled into something far stranger. Awakening inside the world's most popular fully immersive game, Minecraft, Xu Yuan discovers he has transmigrated and become what players call the “White-eyed Monster.” At the same time, the Demon King System activates. With the appearance of Herobrine and the system in place, everything Xu Yuan encountered in that cave seems connected. But as he strives to become Herobrine, he realizes the game world isn’t as simple as it looks… Undead armies, Wither, the King of Calamity, the Blue Demon… one by one, these terrifying enemies appear before Xu Yuan. And a long-planned war has just begun. ﹌﹌ ITS A TRANSLATION﹌﹌ Raw: 我的世界：我是魔王 Author: 吃吃喝玩乐

AmbitiousTransltor · Video Games

The Demon of Pleasure: Starting with Angel, Shiina Mahiru!

Reborn with the power of a demon and the ability to form contracts with people, in an anime setting filled with characters ranging from Shiina Mahiru from The Angel Next Door Spoils Me Rotten to Megumi Kato from Saekano, and many more... Of course, he will contract cute girls! ~~~ Patreon.com/Bleam — Currently You can Read 120 Chapters Ahead of Others!

BigLizEatsAllMeat · Anime & Comics

BTTH: Demon Emperor Xiao Yan

Betrayed by all, abandoned even by his kin, the solitary and peerlessly powerful Demonic Wrathful Saint Xiao Yan stepped through the Gate of Time in his pursuit of the secrets of becoming a Dou Di. But the Xiao Yan who had been walking the path of darkness was unexpectedly reborn into the normal timeline of the Dou Qi Continent — and from there, began a life destined to defy all conventions… --- This is a Translation ---

Fallen_Archangel_ · Anime & Comics

Related Reviews

Desah07

2025-09-21

incrivel, meu amigo que fanfiction boa. O Akaza ai em baixo é porque sim, ele é meu personagem preferido kskskskdkskdkskskskksdkjlkjskksjksjlksljlsjjsjksjjsjkjjjsjskjskkskkkkkkkskskksskksksksksk

Doma is a Chill Guy

Herohero · Anime & Comics

88 Chs

StrongestHuman

2025-12-04

40 chapters, didn't change significant thing to the original story. on the first travel to the demon slayer, he just replaced and took away the chances of growth for tanjiro, then just vanished in the face of that world leaving them to their doom as tanjiro became weak. back to fairy tail world for nothing to change again just to self insert

Fairy Tail: Multiversal Travel

Astralicity · Anime & Comics

254 Chs

FanficLord03

2026-04-28

This fanfic is a world-hopping power fantasy that begins in the Demon Slayer universe but is clearly built for something much larger. The main character, Alex, is thrown into another world and becomes the sentient demon sword Asuramaru, gaining strength through emotions, battles, and the demons slain by his wielder. What makes the story interesting is that Alex is not the usual overpowered traveler who simply punches his way through the plot. Instead, he starts as a weapon, guiding, strengthening, healing, and sometimes manipulating Tanjiro from the shadows. His presence changes the original Demon Slayer timeline in a major way, especially as Muzan begins to fear him and send stronger demons after Tanjiro. The story mixes action, comedy, system progression, and multiverse elements. Readers can expect intense demon battles, upgraded Breathing Styles, sword abilities drawn from different anime worlds, and a protagonist who grows stronger while slowly turning the whole Demon Slayer world upside down. It is not just a Demon Slayer fanfic either. This is only the first world. The story will later travel through other anime universes, bringing new powers, enemies, and chaos with it.

I Became a Demon Sword and Traveled the Anime Worlds

FanficLord02 · Anime & Comics

234 Chs

Bob4President

2021-09-14

Very good fanfiction. The only thing I don't understand is, why is he so weak? I mean he is supposed to have a really strong body and is two years older than tanjiro, so then why are zenitsu, inosuke and tanjiro as strong as him. There is also the fact, that he still didn't use sun breathing or isn't he aware of how to use it? After all even if he didn't Tanjiro would've talked about it.

Demon Slayer: Sea Hashira

Johan_Liebert_ · Anime & Comics

23 Chs

Shame_ManofDao

2021-04-24

I hope Author-san can find a way to solve the Demon Mark that only allows him to live a limited lifespan. Although I am a noob when it comes with Demon Slayer. Just heard about that curse that Tanjiro has. Great read by the way. Please continue.

Demon Slayer: Kimetsu no Yaiba - Asura Breath

Kami_Akuma · Anime & Comics

9 Chs

After wearing the book, the little pixiu exploded in the entertainment circle

The new book," On the Wedding Night, I Kissed the Sick and Disabled Prince to Wake Up " Lin Suisui was the Medicine King's Valley's direct disciple, a miracle doctor. She had saved countless people in her life, but in the end, an arrow pierced her chest and she did not have a good end. When she opened her eyes again, she was the Crown Princess who had just married into the Eastern Palace! In front of him was the eunuch lackey who had threatened to hit him when he was down, and behind him was the seriously injured and unconscious Crown Prince's husband. Lin Suisui turned around and kissed her husband's thin lips with tears in her eyes… _________________________________ Song Mengmeng, the little Pi Xiu who was sleeping and fishing in the Immortal Realm's cave abode, had inexplicably dressed up as the pitiful cannon fodder who had the same name as her in the book. In order to recover the power of the divine beast and kill everyone in this world again, As the mythical beast Pi Xiu who was responsible for wealth, anything that could be solved with money was not a problem! However, there were times when the capital doubling machine would fail. Looking at the villain boss in front of him who was covered in purple qi and bursting with wealth, Song Mengmeng turned her head and quietly wiped the unknown liquid from the corner of her mouth. She stretched out her white and soft little paws shakily. She gently tugged at the corner of the big boss's clothes under the table and begged pitifully, Do you need someone to guard the door? The kind that could guard the house, earn money, and also exorcise evil spirits to ensure safety! As long as he was full. Looking at the soft little girl in front of him, the big boss nodded his head in a soft-hearted manner. Not long after… The soft little girl leaned into the big boss's arms and cried out her hunger. The big boss gently touched the little Pixiu's fair skin. A tender belly, Looking at the empty gold, silver, and jewelry in the safe, he fell into deep thought...

Fan Sauce

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There is space for the wife of the farmer of the female venerable

The pitiful Lin Yu had transmigrated and was now dressed as a peasant girl from the Kingdom of the Venerables. The peasant girl was so pitiful as she had a skinny little brother who was only a handful of bones left. Her father was not close to her, and her mother did not love her. She even sold her to an old man to be a live-in son-in-law for the sake of money. This made her extremely angry. Fortunately, she did not have an old man, but she did have a handsome man. It didn't matter if he was poor. He didn't have to worry about making a fortune with his space. The poor little thing also had a time to soar into the sky! From then on, she could have whatever she planted. You reap what you sow Plant flowers and get flowers. A certain man,"Wife, when will we have a child?" Lin Yu thought to himself,'Are children grown?' Come into my room and I'll tell you how you got here.

Flower Concubine Phoenix

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[Pirate: Draw Karel's Breath at the beginning of the game]

My Captain Is Too Cautious After transmigrating to One Piece, Saul, who originally only wanted to be an ordinary person, decided to become a pirate after much consideration. From then on, he began to live a cautious life. ============== The four rules of going out to sea: First, he would not easily get into conflict with anyone. Once he fought, he would kill the other party and destroy their corpses. Second, he would not easily get involved with the original characters! Third, he would never do anything that could increase his bounty! Fourth, never leave a name for good deeds! However, what Saul never expected was that he had a group of foolish crew members…

Bai Mei

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[Douluo Continent: Invincible since the Goddess forced me into marriage]

[New book, Douluo: Tang San Steals Teacher? I Am the True Tang Sect has been published, genius flow, half invincible, crushing Tang San, killing Grandmaster at the start, welcome to view.] Su Bei transmigrated to the Douluo World and signed in to the Douluo Prince Charming System. She was forced to marry the Silver Dragon King Gu Yuena at the beginning of the game and became the king of soul beasts. She was forced to marry by Gu Yuena,'Sign in to the Dragon God, the Dragon's Son, a peerless cultivation technique…' "I found a peerless handsome man in the Star Dou Great Forest!" "This person is covered in holy light, and also proficient in music, like a banished immortal!" "Lord King is mighty, accept my bow!" Mission Completed. Reward: Divine Grade Paraquat (raw), Immortal Grade Grass, Supreme Grade Soul Bone, Divine Grade Weapon… Ever since I was forced into marriage, I've been having fun in Douluo World every day. I've been robbed every day, and I've been mothered every day…When will my invincible posture be repaid? Sigh… Because of her outstanding looks, she was always being fought over by the world. Su Bei felt helpless."Goddess, come here. Don't come here for the men. If they come, they'll be beaten up. If they come, they'll be abused." [The Ten Great Ferocious Beasts will be my underlings.][Hammer the Tang Sect, take control of the Martial Soul Hall, trample on Shrek, I'm the best in the world.]

Six fountain strokes

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The best husband is not to be trifled with

Hard mouth, soft heart, tsundere star female lead VS vicious mouth, kind heart, affectionate humble CEO male lead * After spending five years, Shen Yicheng still could not understand why Tang Yi wanted to break up with him. It was obvious that everyone agreed to their love. Looking at her back view as she left resolutely, he swore that he would make her fall for him until she wished she was dead. That night, Shen Yicheng flew to an unfamiliar city. Over there, he was an honest, gentlemanly, gentle, and modest gentleman. Little did they know that he used to be a crazy demon that everyone was afraid of. When they met again, he gave her a jacket at the party, and she thanked him politely. Tang Yi,"Why are you putting your clothes on me?" I think… Shen Yicheng said,"Miss Tang, you're mistaken. This dress belongs to the old butler." Tang Yi was speechless. Shen Yicheng: " Don't dirty it. You'll have to return it later. But it's fine if you dirty it. Wash your hands clean and return it to the old butler." In a fit of anger, she threw the clothes into the river. That night, Shen Yicheng acted up again and asked the butler to put the clothes into his bedroom. * After the misunderstanding was resolved, he was like a dog skin plaster, thoroughly and vividly explaining the words "living a life worse than death". "Baby, baby." "Baby, hug me, kiss me, touch me." " Baby, I love you. I love you so much." "Baby, if you leave me again, I'll, I'll commit suicide!"

Delicious little fish

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