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51
Me and Zenitsu? [Zenitsu/Kaigaku] 我和善逸？【善狯】
A collection of short Shan-Gui ship stories... There are so many alternate-universe ideas I want to write! And honestly, Shan-Gui is such a great ship. Anyway, rise up, you two! 321, here we go: If I’m useless, then you’re trash. I can only use the First Form, while you’re the one who can’t even learn the First Form. Grandpa really has it rough. I once truly believed we were like-minded. I kept writing to you, but never got a reply. You worked hard, and I didn’t want anyone speaking ill of you,
22Reads6.9Score—Shelves
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- 52 What Lies Ahead for the God-Favored Inada Kaigaku? 被神明眷顾的稻玉狯岳将何去何从 *A Kaigaku-centric Demon Slayer fanfic. After his junior disciple beheads him, Kaigaku encounters a god who is his alone. From then on, he is favored by that god. What a special little Inadama Kaigaku. Though he is reborn and favored by a god, the young man's E-rank luck is still going strong. He still gets turned into a demon by Kokushibo, but loses his memories and only regains them after the final battle. Kaigaku and Zenitsu both become Upper Ranks, but Kaigaku is much stronger than Zenitsu. 26Reads—Score—Shelves
- 53 Demon Slayer: Thunder Breathing, Loyal to Kaigaku 鬼灭：雷之呼吸，精忠獪岳 [Female lead + junior sister who uses Thunder Breathing] Three outstanding swordsmen in one school: the age of Thunder Breathing has arrived. There’s the loyal senior brother Kaigaku, the dependable second senior brother Zenitsu Agatsuma, and a genius hailed as the strongest since Thunder Breathing was founded… 123Reads—Score—Shelves
- 54 Demon Slayer: Am I Kaigaku's Ancestor? 鬼灭：我是狯岳祖宗？ After awakening my memories, I discovered I’d become an utterly insignificant nobody in Demon Slayer, before the main story began. And it seemed I might even be Kaigaku’s ancestor? I’m done being human! An ordinary, frail young man, I learned my ultimate purpose in this world on my way home: To become the Demon King... When I reached the door of my “home” in this world, I encountered the legendary Upper Rank Three... 3Reads—Score—Shelves
- 55 Inari and Kaigaku: Let Everything Begin Again 稻玉狯岳请一切从头 At first, I was just a fujoshi attracted to Kaigaku's gorgeous figure. Now I want him to be happy. That's when I knew I was done for. This story follows Kaigaku getting a fresh start, with the threads of fate redistributed and rewoven. No new characters will be added. As for the pairings, feel free to ship whoever you like. My writing probably isn't very good, and the characters may go out of character easily. I hope people will ask about any issues so we can talk them through. I hope for a happ 182Reads—Score106Shelves
- 56 Demon Slayer: I'm Done Being Kaigaku's Lackey 鬼灭：工具人狯岳他不干了 The protagonist, Kua Yue, likes Kua Yue. His attitude toward other people is unclear, but there won't be any bloody or violent scenes, and everything else is normal. If you don't like it, just keep your distance. No CP. I may have made Kua Yue a little too powerful, and I feel like the power scaling is slightly broken. The characters may be out of character. If you don't like it, please don't flame me; just drop the story. 158Reads—Score113Shelves
- 57 Demon Slayer: Reborn as Kaisen 鬼灭：重生成为狯子 [Serious warning: The incident where Kaigaku turns evil does not exist. He is completely redeemed.] [SaneGiyu pairing is a must, though it may not happen right away.] [Contains original demons and plotlines. If that bothers you, please leave now.] [The author's personal wish: I hope everyone is doing well after the final battle in the Infinity Castle, and that every couple gets a happy ending.] If Kaigaku were given the chance to be reborn, he would still be as arrogant and unruly as ever. There 440Reads—Score100Shelves
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58
Demon Slayer's Kaigaku: I'll Win and Show Everyone 鬼灭狯岳：我会赢给所有人看
Powerful leads + focused on Kaigaku + mutual redemption + Kaigaku and Zenitsu pairing + fate After being slain in the Infinity Castle, Kaigaku unexpectedly returns to the time before he was driven out of the temple. He secretly vows, This time, I'll show every last one of you that I can win. He doesn't need anyone's help. Yet familial love and friendship keep coming his way, and he finds himself starting to crave them. When he sees Zenitsu again and senses his fierce aura, he knows Zenitsu has b
114Reads6.8Score—Shelves
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- 59 Do You Think You're Happy, Inadama Kaigaku? 稻玉狯岳你觉得幸福吗？ Yeah, basically, that one line from Kaigaku, “Big Brother, have you hidden yet?” kicked me right back here… Sorry, my writing is really bad! The beginning doesn't connect to what comes later! Please don't yell at me… I'm very sensitive. I like every character except Gyomei! Side pairing: Tanjiro and Inosuke. Mentioned in Volume One, with most of their scenes in Volume Two. An unconventional rebirth - - - - - Survive Survive Kaigaku of the Inadama family narrowly escaped death and was take 22Reads8.2Score—Shelves
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60
Demon Slayer Fanfiction: I Transmigrated Into Kaigaku 鬼灭同人：穿越成狯岳
A transmigration power fantasy, but the characters are mostly true to their original personalities. No CP. The modern world is rotten, but this world of demons hiding behind the banner of the Taisho era is even worse. To him, light is a disguise, justice is a line in a script, and the law of the jungle is the only story this world knows. And I have long since abandoned my naive fantasies. If the gods won't save me, I'll save myself. All living beings are bait, and I am the hunter. You want t
68Reads8.1Score—Shelves
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61
Every Possible If Route for Kaigaku 狯岳的if线全收集
[Kuwajima-centric]+ [No redemption]+ [Stats system]+ [Coming-of-age]+ [Power fantasy]+ [No pairing] Kuwajima, an Upper Rank demon whose head was cut off by his junior, is reincarnated. He thought he had finally put the humiliation of his previous life behind him, but the appearance of a video game changes his peaceful life. This time, he'll try to make up for every regret. Warning: The author enjoys chaos and ships all sorts of pairings. A Snake x Love pairing is confirmed for now. There will be
338Reads—Score100Shelves
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62
Demon Slayer: The Countdown to Kaigaku’s Redemption 鬼灭：狯岳的救赎倒计时
After Zenitsu severed Kaigaku’s head during the battle at Infinity Castle, Kaigaku was thrown into a quick-transmigration System for various reasons. At the System’s behest, he has to save the small worlds. … But Kaigaku soon realizes something is off... Can someone tell him why all the key characters in these worlds are people he knows? And can someone explain what this blondie, who keeps eagerly sidling up to him, is supposed to mean?! ----Divider---- Main CP: Zenitsu x Kaigaku Side CPs: Dif
76Reads—Score146Shelves
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63
Demon Slayer: Education Starts Young 鬼灭：教育从小开始
[Original female protagonist, canon pairing for the original characters, no pairings for the protagonist, raising-kids story.] She transmigrates to the time when Muzan has just been born and unexpectedly becomes a servant of the Ubuyashiki Family. As one of the few Demon Slayer villains’ biggest fans, Gongyi Yun thinks she has a strong enough heart. Then she learns she overestimated herself. She gets emotionally destroyed while looking for something to read~ And unexpectedly ends up in the world
95Reads8.1Score101Shelves
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64
Demon Slayer: Our Demon Moon Company Is Doomed 鬼灭：我们鬼月公司吃枣药丸
[Muzan-centric + lighthearted comedy + modern Demon Slayer cast transmigrates into the original story + original worldbuilding] That day was supposed to be nothing more than an ordinary company outing for Demon Moon Inc. To celebrate another record-breaking year in the financial reports, Muzan and his wage-slave employees partied at a hotel all day, and things got downright chaotic. When Muzan woke from his hangover, he realized the era he was in seemed all wrong. Still wearing the goofy T-shirt
30.7kReads9.3Score3.7kShelves
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- 65 We’re Both Ghost Kings, So Why Can You Sunbathe?! 都是鬼王你凭什么能晒太阳！ [Female-oriented] [Contains Yoriichi/Kokushibo pairing] Read with caution!!! Yan Sheng, Yuan Yi, and Yue Yan cosplay and end up in Demon Slayer. Yes, they transmigrate into Demon Slayer. Let's not get into what era it is. Yan Sheng is cosplaying as Hei Si Mou, Yue Yan as the Demon King Wu Can, and Yuan Yi as Yuan Yi, except he's demonized Yuan Yi. Yue Yan: What else is there to say? I'll be the Demon King, then. The three conjoined Demon Kings try to make it through Demon Slayer without gettin 1.3kReads8.2Score191Shelves
- 66 The Cold-Faced Cutie Is Reborn 冷脸萌的我竟然重生了 [Attention, attention, attention! This is a SabiGiyuu, SanemiGiyuu, and TanjiroGiyuu pairing fic! If that bothers you, please steer clear.] After being reborn, Giyuu is just as puzzled as ever: Why do you all say you're going to chase me? I'm not a carrot (like the one dangling in front of a rabbit to make it run), but I do like salmon radish. Sabito, Sanemi, Tanjiro: “That's not right! I'm trying to confess to you!” Sabito, you're standing too close. Do I smell good? It must be the Wisteria sac 249Reads—Score102Shelves
- 67 Demon Slayer: Becoming Kaigaku’s Mother 鬼灭，成为狯岳的妈妈 Yuri was a true native of this world. At fifteen, thin and sallow, she found an equally thin and sallow baby in the snow. Yuri: Can you survive? Kaigaku: Aaaaaah! 4Reads—Score—Shelves
- 68 Madoka Magica: Your Big Brother Is Fine, Now He's Mine 魔圆你大哥fine现在mine New book now open! Updates begin October 15! The overall direction will stay consistent with this book after the return to heaven. Updated September 27, 2026. Thanks for waiting. The sequel begins on October 15, 2026, with one update a day. The new book's promotional period starts during National Day. Can a boy become a magical girl too? (No.) What kind of story will unfold when Kaigaku from another world arrives in the world of Demon Slayer? Zenitsu, who transmigrated too, discovers that a lot 74Reads—Score—Shelves
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69
Demon Slayer: The Hundred-Demon Girl Is Dying to Get Ahead! 鬼灭：百鬼她太想进步了！
[Fanfiction] [No Romance] [Genius] [Making Up for Regrets] Also known as: The Story of How I Accidentally Saved My Coworkers from Their Untimely Deaths and Still Thought We Were Just Ordinary Coworkers. At the age of eight, Hyakki Rei watched her parents hack each other to death. At eleven, she picked up a little brother with green eyes. At twelve, she began learning the Breathing Style. By the age of twenty-two, she had become the most senior of the Nine Pillars. She saved Giyu, Makomo, Shinobu
118Reads8.0Score—Shelves
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- 70 Demon Slayer: The Black Cat Senior Brother and His Golden Retriever Junior Brother 鬼灭：玄猫师兄和他的金毛师弟 OOC warning. The setting is an alternate world. Although this is the original Kaigaku, his soul has merged with that of a modern person. He has only gained some advanced knowledge in his head; his fundamental nature is unchanged. Main pairing: Zenitsu/Kaigaku. Side pairings: other canon couples or friendships. Inadama Kaigaku has lived on the streets since childhood, spending every day with cats. Clutching his name and the magatama around his neck, he struggles to survive in this world. Then, af 199Reads8.8Score—Shelves
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71
Inosuke Hashibira and Kaigaku Are Our Kings 稻玉狯岳是我们的王
On a continent in another world, Inadama Kaigaku rises from a street urchin to become king! “I’m going to be emperor! I’ll take control of every army in the land!” How could a man’s path forward be filled with nothing but laughter? How could the road he’s determined to take have no storms to block his way? (The Great Commander’s little tune) 23333333333 Little Kai wants it, little Kai gets it! The world’s bean! milk! is! poured! at little Kai’s feet! This is the story of ambitious Inadama Kaigak
61Reads—Score—Shelves
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72
Jujutsu Kaisen: Kaigaku’s Heaven-Defying Path 咒回：狯岳的逆天之路
[Jujutsu Kaisen × Demon Slayer | OOC warning | Thunder Breathing | No CP, pure friendship] Kaigaku, a Demon Slayer villain, is reborn in the Jujutsu Society with Thunder Breathing, reduced to a “side quest” closest to the main storyline. The System forces him to atone, but he chooses to fight evil with evil. Fate decrees he must die, but he defies heaven and changes his destiny. At Jujutsu High, he meets true companions and learns to trust and protect others. With his own hands, he shatters a ro
212Reads—Score—Shelves
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- 73 Demon Slayer: Upper Moon Zero Seems Like a Total Loser 鬼灭：上弦0好像是个废物唉 (#Main Story Complete#) (#Bonus Chapters Ongoing#) I won't mark it complete while I'm still writing bonus chapters. Bonus chapter requests are welcome. Original male protagonist, a local with no System, no golden finger, no fixed romantic pairing, and no harem. The protagonist is a child. The following are warnings and key points. To make sure you know what you're getting into, please read them before deciding whether to continue. Don't attack the author. 1. The protagonist becomes a demon at a 2.6kReads9.2Score286Shelves
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74
Mole Squad Chronicles: Kaigaku Couldn’t Escape Today Either 鼹鼠组日常：今天狯岳也没能逃掉
My name is Kaigaku, and I’m top of my class. My biggest headaches right now are: First, my deskmate, Susamaru, is a walking meme cannon. Today she’s a laughing Nael, tomorrow she’s a shocked Peppa Pig. Second, my other friend, Yahaba, keeps his eyes shut all the time, but when he steals food from my lunchbox, his aim is better than anyone’s. Third, my junior, Zenitsu Agatsuma, is obsessed with me. Not just a little obsessed. He gets to school half an hour early every morning to check my appearan
138Reads—Score126Shelves
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- 75 The Dead Big Brother Has Come Back to Life 【善狯】死去的大哥复活了 Years after the battle in the Infinity Castle ended, Zenitsu’s injuries were slowly healing. Just as it seemed everyone was heading toward a brighter future, Zenitsu found a child who looked a lot like Kaigaku on the road back to Mount Sagiri. The more he cared for the child, the more convinced he became that this really was his big brother. And it really was! Not only did he grow up at an incredible rate, he turned into a demon again and even became… H-help! 982Reads—Score198Shelves
- 76 Demon Slayer: My Ex Turned into a Demon, and Now My Junior Won't Leave Me Alone, 鬼灭：前任变鬼后被小师弟缠上， [Bottom-focused] [Not 1v1] What happens when a poker-faced boy meets a coward and a narcissist? Sha Yue Senyi is a poker-faced boy who looks at everyone as if they owe him money. After becoming the former Thunder Hashira’s disciple, he meets two oddballs in succession. One is Zenitsu, a coward who cries “Help!” all day and quivers like a little bird. The other is Kaigaku, a narcissist to the extreme who gazes at himself in the mirror every day, yet always botches things in battle. And then there 790Reads8.0Score102Shelves
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