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33
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1
My Lord Sun and Moon, I Want to Be With You 主日黑我想和你在一起
Demon Slayer, the Tsugikuni family. Yoriichi Tsugikuni x Michikatsu Tsugikuni. Modern AU. The modern-day brothers won't appear until I write them in, so please stop asking. The story also includes a lot of Sengoku-era scenes. You'll understand why as you read. Mainly from Yoriichi's perspective, and this is a ship!!! (Please note, reviewers: sharing a surname does not mean these two are related by blood.) There are some original elements in places, all of them in service of the plot. The story r
290Reads8.5Score118Shelves
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2
Upper Moon One Is Getting Stronger Today, Too 上弦一今天也在变强
Content warnings: This story leans toward a dark take on Nichirin. There are no romantic pairings, only platonic relationships and guidance. The author recommends it this month. Read with caution if that’s not your thing. The protagonist really does kill and eat people. He will not be redeemed. Although he transmigrates, this is not a body-swap or an assumed identity. He is simply one person. There is a courtesan storyline. From the day he transmigrated as Tsugikuni Iwakatsu, Yansheng knew
1.6kReads8.2Score226Shelves
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Anime Crossover: Cheating My Way Through, Starting with Demon Slayer 综漫:从鬼灭开始的开挂
Anime Crossover: Demon Slayer and Harry Potter System: You can go home after visiting five worlds. Ready to go? Wangyue Ze: Go? Of course! And so... In Demon Slayer, as Muzan's only child, he becomes the strongest being in the demon world. Akaza: Enough said. You saved Koyuki and Master Keizo. I'll follow Lord Wuyue through fire and water for the rest of my life. Tamayo: Even if the Demon King is wrong in a thousand ways, for your sake I'll still do everything I can. It's repayment for helping
6.2kReads8.6Score555Shelves
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Demon Slayer: The Strongest Demon Is a Lower Rank? 鬼灭:最强之鬼是个下弦?
[PS: System Story + Lighthearted Tone + HP] After transmigrating into the world of Demon Slayer, he is turned into a demon by Muzan and awakens the Strongest Lower Moon System. As long as he remains a Lower Moon, he can grow infinitely stronger, with an even more overpowered reward for becoming Lower Rank One. In the end: Muzan: His power has already far surpassed Kokushibo's. Why isn't he challenging someone in the Rank Replacement Blood Battle... Wait, has he surpassed me, too? This is rebelli
2.3kReads8.3Score418Shelves
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Demon Slayer: My Younger Brother Loves Me Too Much, What Should I Do? 鬼灭日黑:弟弟太爱我了怎么办?
(The rating will rise once it’s been up for a while!) [Sun and Moon] [Yoriichi x Michikatsu] [No transmigration, canon character designs] The Warring States era is rife with chaos, and demons stalk the land. He, the creator of Sun Breathing and the “child of God” revered by all, can see through the world and perceive all things, yet he alone cannot see through the abyss in that man’s eyes. He, a genius of Moon Breathing, spends his life chasing the sun’s shadow, only to accept the Demon King’s b
2.3kReads8.3Score430Shelves
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6
Demon Slayer: Wandering with the Divine Child 鬼灭:与神子一同流浪
[The score just came out, so it should keep going up o.o] Based on Demon Slayer, focused on Michikatsu and Yoriichi. Michikatsu Tsugikuni never imagined he would get the chance to open his eyes again. He thought he would spend five hundred years burning in the fires of hell, and only be reborn once his sins had been atoned for. But when he opened his eyes, the first thing he saw was his younger brother looking at him with concern. He had returned to a time before their mother died of illness, be
16Reads8.7Score—Shelves
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7
It's Hard to Explain, but My Little Brother Turned into a Ghost 很难跟你解释但我弟变鬼了
Yoriichi and Michikatsu are endgame, no switching or breaking them up. There are so few stories about them that I had to write one myself. This is purely because I love this pairing. Yoriichi is reborn and turned into a demon by Muzan. The two brothers embark on a domestic make-believe adventure (not really). They will travel to the Taisho era. I like happy endings, so I don't like killing characters.
366Reads6.9Score100Shelves
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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
1.1kReads8.2Score198Shelves
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Demon Slayer: Reborn into Everyday Life, Starting with a Memory Trigger 鬼灭:重生日常,从触发记忆开始
[The rating just came out, so let's leave it at that...] Modern AU + Taisho-era storyline (both are main storylines). The school counselor is here (?). ↓ Here's the synopsis!!! There are secondary couples, so beware if that's not your thing!!!!! Very out of character. I wrote this simply because I wanted to read it. Yoriichi/Michikatsu, Douma/Kotoha, Obanai/Mitsuri, Giyu/Shinobu (these are the couples featured). Basically... everyone is reincarnated, and most of them retain their memories. The m
500Reads8.2Score107Shelves
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Working Hard to Reach a Happy Ending with My Older Brother 努力和兄长达成幸福结局中
Yoriichi and Kokushibo, both reborn [The rating just opened, so it’ll go up] Michikatsu with Kokushibo’s memories × the Demon King Yoriichi with the memories of both lives Warring States era + Taisho era Three lifetimes, two sets of memories, and a sun and moon that will never set. Tsugikuni Michikatsu is reborn with memories of his previous life as a demon. Looking at his innocent six-year-old twin brother, he resolves to break free of fate and stop living a life ruled by hatred and jealousy. B
588Reads8.9Score142Shelves
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Demon Slayer: Dear Big Brother, Why Are You Like This? 【日黑】兄长大人为何这样?
A modern-setting Demon Slayer fanfic about the Tsugikuni brothers. What happens when the younger brother, who ran away from home, comes across his older brother's livestream? The elegant, refined older brother he remembers is actually... What will you do, Yoriichi? Freelance Yoriichi x corporate-slave streamer Michikatsu
7Reads—Score—Shelves
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Why Does Upper Moon One Keep Ringing? 上弦一为什么一直响
Dark Sun. [The score has just been released, and it may still go up] After eight hundred years of punishment in hell, Upper Rank One finally completed his sentence, but refused to be reincarnated. King Yama was at a loss. How could a demon still be clinging to an obsession after eight hundred years? Looking at the stubborn, silent demon before him, King Yama stroked his chin. Then, for some inexplicable reason, Kokushibo was tossed back into the mortal world. Back to his childhood, when he and T
10.5kReads9.6Score1.2kShelves
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Anime Crossover: Sun and Moon Shine Together, Starting with Demon Slayer 综漫:从鬼灭开始的日月同耀
Read the warnings first!!! OOC characters➕other popular CPs (depending on the mini-world, but not necessarily in every one)➕Japan bashing, but unconditional favoritism toward Tsugikuni Michikatsu➕multiple Yoriichis➕dark, obsessive yandere behavior➕no plot, just writing whatever comes to mind➕the entire story has been revised➕centered on Tsugikuni Michikatsu➕there's a System, but it won't be mentioned later and doesn't really matter➕other characters may be bashed or put through angst➕dark themes➕
37Reads—Score—Shelves
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Demon Slayer: The Sun-and-Moon Siblings’ Elder Brother Just Wants Some Peace and Quiet 鬼灭:日黑兄长大人只想静静
Kokushibo, Hell’s most stubborn tenant, has a problem. After serving his sentence, he refuses to leave. He stays by his beloved demon’s side and hones his swordsmanship to perfection. Then one day, he gets a special opportunity: travel to more eras and resolve his lingering regrets in exchange for the supreme sword manual. Michikatsu thinks it’s a great deal. What he doesn’t know is that the divine son, sentenced to a century of hard labor after failing a mission, has already latched onto him. V
131Reads—Score—Shelves
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Raising Upper Moon One: A Tale of Stomach Cramps 上弦一胃痉挛养成记
RiHei CP In the present day and the Warring States era, what choice will the lonely moon, whose paths and fates diverge again in their second life, make? Will they head into an endless, solitary night, or work together so the sun and moon shine as one? Emotion, reason, and those lingering memories they cannot forget intertwine, leading them down a different path. “Beneath endless hatred lies love; the instinct behind loathing is to protect.” “To hate him… is, in truth, to hate myself.” “Leave it
34Reads—Score—Shelves
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Kokushibo Loses His Memory and Makes Everyone Think He's Lost It 黑死牟失忆创思所有人
A Demon Slayer fanfic, primarily featuring Michikatsu. Amnesia and overpowered-protagonist tropes, following the original work. Not much else to say. It's all about getting sweet and exciting! Kokushibo is struck from above by an overpowered-protagonist System and loses his memories. Guided by the System, he challenges Tsugikuni Yoriichi, the strongest person in the country, but loses. The System immediately retreats and decides that Yoriichi is a worldly master, then tells Kokushibo to become h
43Reads—Score—Shelves
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Demon Slayer: Why Is My Spirit Companion Always Clinging to Me? 日黑:背后灵为什么总是黏着我
[Modern] + [Reincarnation] + [A Touch of the Supernatural] Yoriichi, a male ghost who refuses to be reincarnated, x his reincarnated older brother Michikatsu, a materialist college student. A modern supernatural setting, with other characters reincarnated as well. Main pairing: Sun and Moon. Content warning: a small amount of TokoKoto elements, so please beware if that's not your thing. After the sun sets, evil spirits roam. The dead Yoriichi was too consumed by his obsession to be reincarnated
9Reads—Score—Shelves
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Demon Slayer: The Moon Chasing the Sun 鬼灭:追逐太阳的月亮
Michikatsu/Kokushibo pairing, with a little Obanai/Mitsuri and Doma/Kotoha Follows the original Demon Slayer story, with plenty of personal preferences and lots of OOC. [Do people go to heaven when they die? Michikatsu Tsugikuni doesn't know, but Kokushibo does. Someone like him is surely bound for hell, with Yoriichi Tsugikuni, who has always followed him around, coming along too. The not-so-normal version: What do you mean my little brother thinks I'm the Master? What do you mean I dressed as
148Reads6.7Score113Shelves
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The First Upper Moon Still Doesn't Want to Livestream Shipping Couples Today 上弦一今天也不想直播炒cp呢
[Sun and Moon · Dual POV · Modern Livestream · Animal Personifications · A Touch of Ensemble Cast] Everyone in the underworld knew that the powerful newcomer shone with merit, yet time and again, he politely declined [Compassion]'s invitations. He did only one thing each day: write down the story of his departed friend in his diary, over and over. Then, after an accident brought them to the modern world, he and the other person were given a special task: Play a pair of partners on a livestream a
2Reads—Score—Shelves
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Why Are the Sun and Moon Pillars Always Clinging to Each Other? 日月柱大人为什么总黏在一起
My new work is out! You can find it on Tomato Novel. I hope you'll enjoy it. Your support is what motivates me to write, and I'll do my best to tell every story well!
54Reads6.8Score—Shelves
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The Chaotic Second Life of Upper Moon One and Two 上弦壹二周目的鸡飞狗跳
Twelve Hours of the Spring Festival: The Hai Hour The moon is so gentle, the sun so blazing. [OOC Warning + Sun-Hater] Sun-hater, fully endorsed. Setting: The Sun-Hater is tragically a triplet; Kokushibo is in his third cycle, while Yoriichi Tsugikuni and Muzan are in their second. If my younger brother gets into a fight with my boss, whose side should I take? Muzan: What do you think, Kokushibo!!! Yoriichi: Big brother… (a pitiful little bear) Michikatsu: ? The day fate began anew: Yoriichi: Wh
73Reads—Score—Shelves
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Hey! Bro, Stop Giving Yourself Away for Free! 喂!哥不要再白给了啊
[I became the third son of the Kamado family?!] [Everything here is Demon Slayer hatefic] [I’ve put all kinds of stories here so I can find them later, so just pick whichever ones you like, teacher] Cat-coded big brother ✖️ dog-coded little brother Original setting: The big brother is reborn after being killed by the little brother. The rebirth takes place not long after the little brother leaves the Kamado family. The little brother still can’t talk, but he takes action directly instead (not to
157Reads—Score—Shelves
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The Moon of Tsugikuni Yoriichi Never Sets 继国缘一的月亮不会西沉
(The rating just opened, so it’ll rise later.) [Key tags] Dark themes | Green-tea little bear | Growing-up romance | Succubus older brother | Forced imprisonment with a twist | Sweet and angsty | HE | Two Yoriichis, but they’re the same person (the main story is complete, so read with confidence) In hell, Iwa Katsumi saw a face that made him sick. He quietly left, but Kokushibo Yoriichi held him tightly. The child of a god wept, his tears scorching the demon’s lungs. It was as though he were
1.3kReads8.7Score276Shelves
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Demon Slayer: The Legendary Lady Tsugikuni 日黑:传闻中的继国夫人
[Demon Slayer fan fiction] [Yoriichi x Kokushibo] (The rating has just been posted and will rise) That Lord of the Sun, the invincible child of the gods, actually had a beloved wife. Unfortunately, Lord Yoriichi would not let anyone meet his wife, Lady Tsugikuni. Only at night would the sound of roaring come from his courtyard. It was said that the lady had quite a temper. At last, unable to hold back his curiosity, one Corps member sneaked into the courtyard while Lord Yoriichi was away. In the
3.1kReads8.8Score668Shelves
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Dark Sun: Sun and Moon Shine Together 日黑:日月同辉
Kokushibo X Yoriichi Tsugikuni “I hate the moon hanging high in the sky, shining on everyone but me.” “I hate the blazing sun for shining on me when I’m powerless to protect him.” After being unexpectedly resurrected, Yoriichi Tsugikuni becomes something neither human nor demon. He can’t die or grow old, but unlike a demon, he isn’t afraid of sunlight. He also can’t regenerate and still needs to eat… But as long as he can stay by his big brother’s side, that’s enough. A stone-faced, death-defyin
605Reads8.7Score151Shelves
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Reborn as Upper Rank One 重生成为上弦壹
(No CP + System + transmigrated into Demon Slayer) After transmigrating as Michikatsu Tsugikuni, Sanemi can only follow the System's prompts and stick to the plot if he wants to survive. But while Sanemi (Michikatsu) dutifully stays at his post and carefully completes his missions, everyone else has gone completely out of character behind his back… There are plenty of flaws in this book that I haven't noticed, and now that it's finished, I can't fix them. It's not that the author won't make
3.7kReads9.4Score458Shelves
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Demon Slayer: How Michikatsu Got Surrounded by Yoriichis 鬼灭关于严胜被缘一们包围这件事
[Love triangle showdown + younger brother characters + multiple rivals + Western fantasy adventure + Demon Slayer fanfiction + Kokushibo and Yoriichi + lighthearted + comedy] One moment, Yansheng is basking in the sun in the sea. The next, humans have kidnapped him. Once he gets a good look, he wonders which fool dared lay a hand on him... ? Why is it Yoriichi! Wait, why is he human! Tsugikuni Yansheng is the strongest warrior in a thousand years of the merfolk, and the perfect older brother in
1.2kReads8.7Score206Shelves
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The Brothers' Little Everyday Moments 兄弟两小日常
A Japanese Demon Slayer fanfic, focusing on the brothers’ dynamic. The first phase follows young, amnesiac Michikatsu and young Yoriichi, who remembers everything. Michikatsu gradually recovers his memories from his first life through dreams. In between, the amnesiac Michikatsu of the second life dreams of adult Yoriichi from the first life. The second phase tells the story of Michikatsu leaving the Tsugikuni family, meeting Yoriichi, who also left home after him, and joining the Demon Slayer Co
338Reads—Score113Shelves
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Demon Slayer: Michikatsu from a Parallel World Transmigrates into Demon Slayer 鬼灭:平行世界的严胜穿越了鬼灭
Michikatsu Tsugikuni, living in a modern parallel world, was looking at his phone while crossing the street when a speeding car hit him and sent him flying. He transmigrated to the world of Demon Slayer. “Hmm, where am I? Wasn’t I just hit by a car? How did I end up here in the blink of an eye?” Michikatsu stared at the snow-covered forest around him, lost in thought. He shook his head and prepared to leave this strange place, but then heard footsteps crunching in the snow behind him. “Oh, there
295Reads6.9Score110Shelves
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Demon Slayer: Tsugikuni Michikatsu’s Second Life 鬼灭:继国岩胜的二次人生
Not a canon-compliant fanfic. The protagonist is Tsugikuni Michikatsu. A word of warning before reading: this may be quite heartbreaking. Every scene serves as a key setup for what comes later, so there is no filler. It contains a great deal of invented historical detail and extensive original speculation. The romance is very subtle, so read with care. The story is divided into three parts: the Warring States period, the Edo period, and the Taisho period. Tsugikuni Michikatsu is not purely good-
40Reads—Score—Shelves
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Demon Slayer: I’m Not Kokushibo, I’m Tsugikuni Michikatsu 鬼灭之刃l不是黑死牟是继国岩胜
[It’s a parallel world, so of course some things are different] Iwa Katsumi got behind the wheel drunk, and a justice-loving transmigrator from another world took him out with a single punch, like a Transformer going “Ora!” Well, transmigrating was one thing, but why Japan? And if it had to be Japan, why ancient Japan? He ran into his younger twin brother, Yoriichi Tsugikuni, who was being tormented by feudal superstition. In this era, twins were considered cursed and ill-omened, and on top of t
108Reads—Score—Shelves
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Demon Slayer: Tsugikuni Michikatsu Decides to Run Away 鬼灭:于是,继国岩胜决定逃跑
The story begins with stopping Yoriichi from leaving: “...For details, please ask Asei, who attends to my personal needs. I’m leaving for the temple now.” “Leaving? You’re leaving now?” “Yes. I just wanted to say goodbye before I go.” This time, Tsugikuni Michikatsu grabs hold of him. “Stop.” “...Brother?” “Mother has left us, so are you going to abandon me too?” Yoriichi: “...” He never left. After that, he became the new heir of the Tsugikuni family. This is a story about family, famil
851Reads9.3Score101Shelves
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Upper Moon One Is Babysitting Again Today 上弦一今天也在带小孩
[Warning: The protagonist eats people!] [OOC warning] [Mostly everyday life, with childcare; the protagonist is very clingy with the Tsugikuni brothers] After disappearing, he opens his eyes and finds himself at the very beginning of fate. Since he's here, he might as well take “himself” and Yoriichi down a path completely different from the last life. It's just that Yoriichi and Michikatsu seem a little too clingy.
113Reads8.3Score—Shelves
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