The Main Character Transmigrates into Demon Slayer, Defeats Muzan, Then Transmigrates into Naruto as a Demon 主角穿越鬼灭，打败无惨后穿越火影（直接是鬼）

1. 1 人 Reborn in Demon Slayer: A Journey That Begins with Demon Slayer 人在鬼灭：从鬼灭开始的旅途 Dark Reincarnation黑色轮回Anime Fanfiction826k WordsCompleted He transmigrated as Muzan Kibutsuji's younger brother. To honor a promise and shoulder the responsibility he had been given, he set out on a journey to kill Muzan Kibutsuji. Yet throughout the endless years that followed, he uncovered more and more secrets hidden from the world. Why were demons born? Why could the priestly clan predict the future... The mastermind pulling the strings behind it all gradually began to emerge. [First world: Demon Slayer] [Second world: Naruto] 932Reads8.8Score101Shelves

   Reader note

   The first book should meet your requirements, and the second one is absolutely amazing. When I first read the second book, there was no rating. It must be that it is not popular enough. The third one... [Laughing] [laughing] [laughing]

2. 2 鬼 Demon Slayer: Reborn as Muzan, the Villainous Boss 鬼灭：穿成反派Boss无惨 Stop Scrolling Videos别刷视频Anime Fanfiction586k WordsCompleted No heroine, no romance, no darkness or saintly do-gooders. I transmigrated into Muzan, five hundred years before the story begins? There’s so much room to work with! The Blue Spider Lily! Overcome sunlight! Become the ultimate life-form! Retire with the Twelve Kizuki (just kidding). Every now and then, scare the Demon Slayer Corps, and maybe have some fun as a spy (ಡωಡ) Live long enough to see smartphones arrive! Games! Novels! Anime! ୧⍢⃝୨ And even... Run into the original scumbag boss, stand in 9.6kReads9.6Score1.1kShelves
3. 3 神 A God Bravely Ventures into the World of Anime 神明勇闯二次元 Trashy Witch Ilena屑魔女伊蕾娜Anime Fanfiction338k WordsOngoing (Demon Slayer) Liming was an ordinary student on Blue Star until he unexpectedly transmigrated into a world of anime and gained the Divine System. (Slowly becoming a god.) From the start, he became Muzan's adoptive father, but things gradually took a strange turn. “Hey, Muzan! Get off me! System, help!” (Muzan becomes a woman later on, with a yandere streak.) (The characters have been changed quite a bit!!! The early plot follows the original story, but later it goes off on its own. The beginnin 962Reads9.2Score113Shelves
4. 4 在 In Demon Slayer, I Break Every Taboo 在鬼灭的我打破一切禁忌 Poor Little Dummy可怜的小呆瓜Anime Fanfiction254k WordsOngoing “Hey, watch me catch Hinokami Kagura with my bare hands using the One Yang Finger.” “You say your ice is tough? Ever felt a thrust straight from hell?” “You love fighting, and so do I. The only difference is that I can unleash lightning from my whole body.” “My speed far surpasses Zenitsu Agatsuma’s!” “I am both black and white.” [After the Demon Slayer story ends, the protagonist will head to the Naruto world. Don’t worry, this won’t be short or weak.] 10Reads9.0Score—Shelves

   Reader note

   The first book is very in line with your requirements. The protagonist travels to Demon Slayer. The protagonist is a ghost, but he does not eat people. He only eats the hearts of evil people. The plot of Demon Slayer in the early stage is a bit fast. In the end, the protagonist defeats Muzan and travels to the world of Naruto. He still retains his original strength. The protagonist travels to the world of Naruto and joins the Akatsuki organization.

5. 5 鬼 Demon Slayer: My Brothers Are an Upper Rank and the First Swordsman 鬼灭：我的哥哥是上弦和初始剑士 Chuunibyou Is A Disease, And I Won't Treat It中二是病我不治Anime Fanfiction790k WordsCompleted This book is also known as [The Third Child of the Tsugikuni Family] and [The Child Adopted by the Tsugikuni Family] (There shouldn't have been any dots in the title, but none of the versions passed review [sad]) Now for the content warnings. 1. The protagonist is a demon, and a tsundere. Read with caution if that's not your thing. 2. The story's angst is wrapped in sugar, and I can promise it's all sweetness (?). But sometimes I end up making it angsty without meaning to. 3. There's no CP. Ther 5.7kReads9.5Score905Shelves
6. 6 我 I Traverse the Myriad Worlds with This Body 我以此身渡诸天 Dog Hair Everywhere漫天狗毛Anime Fanfiction814k WordsCompleted Wang Dao was just an ordinary person. He never expected that the first thing to happen after he died wouldn't be the end. Instead, he was thrown into one strange and dangerous world after another, forced to fight, grow, make choices, and face formidable foes and fates that had once existed only in his imagination. Each time he entered a new world, he had to struggle from scratch, searching for a way to survive on the brink of death and gradually turning everything he learned there into real stre 4Reads—Score—Shelves

   Reader note

   Different from the traditional male protagonist Long Aotian, Wang Daohui will face up to his own shortcomings and focus on training after losing to Wu Ke many times. The character's shortcomings and growth will be displayed simultaneously.

7. 7 鬼 Demon Slayer: How to Raise a Meal Hashira 鬼灭之刃：饭柱的养成手册 Lu Wants a Sesame Seed陆要芝麻粒Anime Fanfiction491k WordsCompleted After Haruto went through hell to complete his demon swordsman training, he headed to Mount Fujikasane to take part in the selection. Suddenly, a line of comments floated before his eyes: What a handsome guy. Too bad he's going to die in the next second. Moments later, the Hand Demon hidden on Mount Fujikasane pierced his heart, and he bought the farm. When he found himself back on Mount Fujikasane, Haruto thought it had all been a dream. Then another line of comments flashed before his eyes: Th 17.5kReads9.7Score2.4kShelves

   Reader note

   I don't allow Demon Slayer's posts to be without rice pillars

8. 8 诸 Myriad Worlds: I’m a Demon Under Muzan 诸天：我是无惨手下一只鬼 Donkey-Petting Immortal Official摸驴仙官Anime Fanfiction523k WordsCompleted Journey Across Worlds: The current order is Demon Slayer, Jujutsu Kaisen, Spider, Slime, and Bleach. A young man from the modern era transmigrates into Demon Slayer with the Sign-In System for All Worlds. Kibutsuji Muzan: “Let’s see how much of my blood you can withstand.” Tamayo: “He’s a demon who has also broken free of control.” Kokushibo: “His swordsmanship is even better than mine.” Tanjiro: “The master of Sun Breathing.” 173Reads6.8Score—Shelves

   Reader note

   Just make do with it! [Think]

9. 9 主 Sign-In in the Main God Space: Invincible, Starting With Demon Slayer 主神空间签到!无敌从鬼灭开始 Gloomy Homebody Who Slacks Off摸鱼的阴沉宅男Anime Fanfiction887k WordsCompleted Li Xuan, a man of cool and distant temperament, arrived in the Main God’s space of another world with a sign-in System. Unlike other Reincarnators, he had the ability to know the storylines inside out. “Li Xuan is the greatest Breath Swordsman in history!” the Master, Ubuyashiki Kagaya, praised him at the Hashira meeting. “He actually dragged Muzan out into the sunlight!” The Hashira were aghast. “Why are you so fragile?” Li Xuan said, holding up a stunned Muzan, whose life had lost all m 7.1kReads8.9Score642Shelves
10. 10 人 In One-Punch Man: Developing the Eight Supreme Techniques from the Start 人在一拳:开局推演八奇技 The Edge of Wolfish Ruthlessness狼灭之涯Anime Fanfiction1.1M WordsCompleted [One-Punch Man + Demon Slayer + Akame ga Kill! + Hokage + Ling Cage + Pirate King + Jujutsu Kaisen + Re:Zero...] After transmigrating to the world of One-Punch Man, Luo Yu activates a God-Tier Deduction System. While deducing the Eight Supreme Skills, he learns that he needs to hunt monsters and gather energy to speed up the process. But there don't seem to be enough monsters. So, could he make his own and set up a monster farm? Psykos: "I'll follow your every command, Master~" Miss Tamayo: "If 28Reads7.0Score—Shelves
11. 11 综 Anime Crossover: Starting with Demon Slayer 综漫：从鬼灭之刃开始 Fantasy of the Void空之幻想Anime Fanfiction1.6M WordsCompleted He picked up a cracked Samsara Watch and was reborn in the world of Naruto as a member of the Uchiha clan. The night of the clan’s massacre was drawing near, but fortunately, the Samsara Watch he had brought back with him could still be used. First world: Demon Slayer Second world: Hunter x Hunter, Heavens Arena arc Third world: Inuyasha Akame ga Kill! The world of One Piece! A man in a Tokyo crossover world. (If you’re interested, you can start with this volume.) 1.1kReads7.8Score102Shelves
12. 12 诸 From Demon Slayer to the Myriad Worlds 诸天万界从鬼灭之刃开始 Nameless Stars无名繁星Anime Fanfiction1.5M WordsCompleted From the start, he has nothing but a demon-slaying blade. Beginning in the world of Demon Slayer, where demons devour humans and humans slay demons, the transmigrator Bai Yu makes a pact with a demon god and becomes a being who surpasses demons. 881Reads8.1Score102Shelves
13. 13 鬼 Demon Slayer: The Ice-Ice Fruit Slaughters Muzan 鬼灭之刃：冰冻果实爆杀无惨 Dimension Otaku次元宅Anime Fanfiction1.6M WordsCompleted Lin Guang transmigrates to the world of Demon Slayer and awakens a Super Treasure Chest System! In the world of Demon Slayer, slaying demons earns treasure chests. In the world of One Piece, defeating the Navy and the Celestial Dragons earns treasure chests. In the world of Naruto, killing enemies earns treasure chests. And so, Lin Guang keeps opening chests and conquering worlds! 1.4kReads7.9Score117Shelves
14. 14 从 Controlling the Butterfly Effect in Demon Slayer 从鬼灭之刃开始控制蝴蝶效应 The Flying Salted Fish咸鱼乃飞天Anime Fanfiction1.7M WordsCompleted I, Horu Gaku, absolutely refuse to become Kaigaku! After transmigrating into Demon Slayer as Kaigaku, am I supposed to follow the same old path? Betray the Demon Slayer Corps? Get my master killed? No way! That scumbag boss Muzan never brings anyone working for him to a good end! So Kaigaku changes his name to Horu Gaku and, with the help of the System, sets out on a completely different life. As for the source of all this tragedy, Muzan Kibutsuji, I’ll chop you into tiny pieces, dry you out, ha 1.8kReads8.7Score176Shelves
15. 15 从 The Demon Swordsman Begins in Demon Slayer 从鬼灭开始的鬼剑士 Square Nine方块九Anime Fanfiction729k WordsCompleted Shen Le is reborn in the world of Demon Slayer with a Ghostblade System. The System has only one mission: travel between various anime worlds, eliminate hostility, and earn purification points. Once every Ghostblade class has awakened, he can return to the real world. Current world: Naruto! 726Reads8.4Score—Shelves
16. 16 鬼 Demon Slayer: Killing Demons Makes Me Stronger 鬼灭：我杀鬼能变强 Strong Liquor Mixed with Thick Smoke烈酒拌浓烟Anime Fanfiction269k WordsCompleted The protagonist transmigrates into a world of Demon Slayer, where terrifying monsters devour people, and killing them makes him stronger. From then on, he becomes invincible, steadily builds his strength, runs rampant without restraint, does as he pleases, and fears no taboos. 18Reads—Score—Shelves

    Reader note

    Didn't travel to Naruto

17. 17 鬼 Demon Slayer: As Upper Rank Seven, I Refuse to Reveal Myself 鬼灭之我上弦柒绝不暴露 I Never Forget Bai我勿忘白Anime Fanfiction600k WordsCompleted Wu Hen, a man from the 21st century, transmigrates to the world of Demon Slayer. Just after awakening the Dark System, he runs into the boss, Muzan, and through a twist of fate becomes Upper Rank Six. He thinks his life will amount to becoming a demon, driven around by the cruel and brutal Muzan. But with the System's help, he can briefly turn back into a human, and things get interesting! Wu Hen begins his revenge, turning human and unlocking Dark Breathing. He forges a moving brotherly bond wi 679Reads8.5Score111Shelves

    Reader note

    Nothing good, that's it

18. 18 鬼 Demon Slayer: Snow Breathing 鬼灭之刃之雪之呼吸 nai Nai-channai奈酱Anime Fanfiction378k WordsOngoing [Beloved by everyone heroine + Muzan is the endgame] A good citizen raised under the national flag, I closed my eyes and transmigrated into the world of Demon Slayer. But why did I wake up as a baby in a filthy ditch? Luckily, Ruka Rengoku rescued me and took me in as her adopted daughter. I follow in Kyojuro Rengoku's footsteps, making slaying Muzan my goal. But why do all the demons look at me so strangely, as if they want to attack but don't dare? This is a bond spanning a thousand years, a j 644Reads9.2Score107Shelves
19. 19 鬼 Demon Slayer: The Traditional Virtues of a Rhythm Game Player 鬼灭之刃：音游人的传统美德 Sugar Fish Shrimp糖鱼虾Anime Fanfiction341k WordsCompleted As a rhythm game player, he transmigrated into the world of Demon Slayer. When he was attacked by a demon, he was saved by the Sound Hashira, Tengen Uzui, and became his Tsuguko… Using the music of his previous life, he’ll compose the ultimate track! This is the story of a rhythm game player dazzling the world of Demon Slayer. 690Reads9.0Score113Shelves

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