[Chat Group]
Yamamoto Mei: "Three new members joined at once?"
Miyuki Uchiha: "That's right. And it seems two of them are from the same world. One of them is my waifu."
Miyuki Uchiha: "Shinobu Kocho, my waifu! Look at me! I like you so much!"
Erina Nakiri: "Here we go again… Is the bond between girls really that beautiful and attractive?"
Kasumigaoka Utaha: "I wouldn't know, but my light novel 'Miss Death Won't Fall in Love with the Uchiha' sold over 3 million copies. That means at least 500,000 readers like girl-on-girl pairings. Considering piracy and the anime adaptation, we're probably talking several million viewers."
Yamamoto Mei: "...I feel like I'm chained to this Uchiha b forever. I seriously want to die."
Shinobu Kocho: "...What is this?"
Esdeath: "Did you say the two newcomers are from the same world, Miyuki?"
Miyuki Uchiha: "Yup! If I'm right, Muzan and Shinobu Kocho are both from Demon Slayer, while Saitama is from One Punch Man."
Miyuki Uchiha: "Daemon-sama! Your opponent is here! Saitama—the One Punch Man!"
Esdeath: "Better than Daemon?"
Luo Hao: "So there's finally someone strong from a powerful world? One Punch Man, huh…"
Daemon: "...We haven't fought yet, so who knows? But I'm confident I won't lose."
Saitama's strength had always been a mystery.
Some said he was invincible. Others argued he was only planetary-level. Some even claimed he was galaxy-level in the manga.
But Daemon knew this: pure physical ability alone wouldn't be enough to defeat him.
With the Belt of Hercules, Daemon's speed and strength were constantly enhanced. It wouldn't be an easy fight, but it wouldn't be a guaranteed loss either.
Saitama: "Eh, if someone's stronger than me, that actually sounds fun."
Saitama: "But what is this? A chat group? Is this the power of some new weirdo?"
Muzan: "Who dares speak in my mind? Get out! Or I'll turn you into a demon and torture you for eternity!"
Shinobu Kocho: "Muzan? Is that really the Demon King Muzan? Is this chat group created by you?"
Shinobu Kocho: "Muzan! We of the Demon Slayer Corps will destroy you! For all the innocent lives you've taken!"
Muzan: "Demon Slayer Corps? So this chat group is your creation?"
Miyuki Uchiha: "...All your questions are answered in the group announcement."
Miyuki Uchiha: "Also, Muzan, seeing your name already ruins my mood. So shut it."
Muzan: "Hmph. You lowly human dare insult me? I'll devour your flesh and blood!"
Saitama: "...Man, this guy's got a nasty attitude. Is he strong? Whatever. I'll check the announcement first."
Esdeath: "Heh. I hope he's still this cocky after reading what the chat group really is."
Luo Hao: "He's annoying. Can't the chat group just delete him?"
Miyuki Uchiha: "Nope. Rulebook says it clearly—members can't be killed within the chat."
Daemon: "I wouldn't be so sure."
Daemon: "If the chat group brought two natural enemies into the same space, it may have some kind of system for that—just my theory."
Yamamoto Mei: "That makes a lot of sense, Mr. Daemon!"
Saitama, Shinobu, and Muzan had very different personalities. But Muzan's arrogance was already rubbing several members the wrong way.
Even Luo Hao, the god-slayer herself, looked ready to strike him down.
Muzan narrowed his demonic eyes. "What is this chat group? A new Demon Slayer trick?"
Curious and suspicious, he clicked on a certain tab: Memory Copy.
Saitama: "So my world's an anime? A manga with invincible flow that's not even finished? No wonder I've never found a real challenge."
Saitama: "Seems like we've got a queen of frozen time, a god-slayer, and some Celestial Dragon with insane gear... I hope we can have a good fight someday."
Esdeath: "Invincible?"
Miyuki Uchiha: "Yeah, like solve-anything-in-one-punch kind of invincible. He can even destroy planets."
Esdeath: "...Planet-busting punches? Honestly, I can't even process that."
Erina Nakiri: "I thought destroying a building with one punch was already peak strength!"
Kasumigaoka Utaha: "I've got the Mythical Zoan—Pink Dragon form—plus the Twelve Trials and Susanoo's enhancement. I might be able to wipe out a small island in a few minutes…"
Miyuki Uchiha: "Senpai's catching up to me! This is the terrifying power of European luck! I'm supposed to be the main character with a system!"
Yamamoto Mei: "Main character? Uchiha, you're barely an E-list side character!"
Miyuki Uchiha: "Says the violent sidekick! You're no different!"
Saitama: "...These women are exhausting."
Esdeath: "Heh. Agreed."
Shinobu Kocho: "Everyone, I've read the memory copy of my world, and I checked the group announcement too. May I ask… can I post a task?"
In her world—the Demon Slayer world—Shinobu Kocho looked at the group interface with newfound hope.
A reincarnated Celestial Dragon who wields mythical lightning and noble phantasms.
A god-killer who slays gods and steals their power.
A light novelist turned miracle warrior.
A bald man who smashes planets with a punch.
If these people were real, then her world could truly be saved!
She had seen it all in the memory copy.
Friends lost. Demons running wild. Helplessness and despair.
But now she had a chance. She had to act—before Muzan did.
He was here too.
Which meant he had also read the memory copy. He'd know everything.
She had to move first!
Miyuki Uchiha: "Sorry, Sister Shinobu. Even though I adore you, missions can only be posted when the chat group allows it. You can't create them on your own."
Sakura Tosaka: "Right. Even someone as strong as Daemon can't trigger them manually. It's completely random."
Luo Hao: "Oh? Sakura-chan can't go three sentences without bringing up Daemon."
Sakura Tosaka: "W-What?! Brother Daemon is just... reliable! He's my savior!"
Shinobu Kocho: "If we're talking about group missions… I think I've already been allowed to post one. [Image]"
[Mission: Kill Muzan]
[Objective: Eliminate Muzan. No additional requirements.
Time Limit: 1 day
Participants: 3
Reward: Demon Slayer World Specialty Lottery (1 draw)]
Miyuki Uchiha: "Eh?! Shinobu just joined and already got permission to post a mission? She's so lucky!"
Yamamoto Mei: "And the target is another group member?"
Kasumigaoka Utaha: "You were right, Mr. Daemon. The chat group doesn't pull enemies in by accident."
Esdeath: "Haha! Perfect! Muzan, huh? Humans aren't weak—they're only weak if they act like cowards!"
Erina Nakiri: "...That might've been the most Esdeath-like thing you've ever said."
Demon Slayer World –
Muzan Kibutsuji, the so-called Demon King—who had always carried himself with arrogance and disdain—was now trembling. His face, usually filled with sinister calm, had gone pale.
The chat group had shaken him to his core.
When he first joined, Muzan had casually used the lottery spin granted to all newcomers.
He'd received a Zanpakutō—an illusion-based weapon of incredible power. At the time, he thought it was a decent reward. A step toward more power.
But now?
It was meaningless.
"Heroic Spirits... Godslayers... people who can freeze time, command divine dragons, wield star-destroying weapons... and even a bald demon king?!" Muzan's mind reeled.
It wasn't just words. The memory copies proved it—they were all real.
He had never felt this desperate in his entire life. Not even when he was nearly slain by Yoriichi. Back then, he'd feared death. But this… this was a nightmare of a different kind.
Compared to these monsters, Yoriichi seemed like a mere child wielding a wooden sword.
And now, to his horror, Muzan had seen something else in the chat group—
A mission.
Posted by none other than Shinobu Kocho.
A mission to kill him.
When he saw it, Muzan almost collapsed from shock, instinctively splitting into thousands of pieces in panic.
But then… hope.
A sliver of salvation.
Missions… right!
He could post a mission too!
Trembling but determined, Muzan immediately copied Shinobu's example and posted his own.
Muzan the Miserable:
[Screenshot]
[Mission: Destroy the Demon Slayer Corps]
[Objective: Eliminate the Demon Slayer Corps. No restrictions. Complete freely.]
[Time Limit: 7 days]
[Participants: 3]
[Reward: Demon Slayer World – Special Lottery Ticket]
Muzan: "Look! I can post missions too!"
Muzan: "My strength is far beyond the Demon Slayer Corps. Help me, and we'll wipe them out easily!"
Muzan: "I am the immortal Demon King! I can give you eternal life—surely you wouldn't refuse that?"
The chat group lit up in response.
Esdeath: "Interesting. So both sides can issue missions?"
Jibril: "Ahahaha! How thrilling!"
Luo Hao: "Personally, I prefer that little girl—Shinobu Kocho. She's quite polite. Don't you agree?"
Miyuki Uchiha: "Of course. I'd rather help Sister Shinobu than this creepy old demon."
Yamamoto Mei: "Same. Ghosts are disgusting. The Demon Slayers are heroes."
Sakura Tohsaka: "Sakura thinks Miss Shinobu is way more likable..."
Daemon: "Beautiful women > ugly monsters. Easy choice."
Shinobu Kocho: "Muzan, you vile creature! I won't let you destroy the Demon Slayer Corps!"
Shinobu Kocho: "Everyone… I won't force you to help. But I'm willing to share a copy of my world's memories with you. Watch it. Judge me—and Muzan—for yourselves."
Ding!
[Notification: Group member Shinobu Kocho has uploaded a memory copy of the world "Demon Slayer." All members may view it freely.]
The chat group went silent for a long moment.
Then—
Luo Hao: "The chat group has a function like
that?"
Yamamoto Mei: "Never seen anyone use it before."
Miyuki Uchiha: "Makes sense. Most people wouldn't want to expose their whole life like that. But thanks to Shinobu, we saw Muzan's true nature."
Saitama: "Wait… so Muzan really is the bad guy?"
Miyuki Uchiha: "Absolutely. A cowardly, manipulative, tantrum-throwing demon-baby. Watch the memories—see for yourself."
Shinobu Kocho: "Thank you, Miss Miyuki…"
Miyuki Uchiha: "No need to thank me, Sister Shinobu. Any decent person would feel disgusted by Muzan."
Muzan: "Nonsense! Lies! This woman's memories are twisted! Fabricated! She's trying to frame me!"
Back in the Demon Slayer world, Muzan seethed as he saw his sins laid bare. His reputation—the carefully crafted illusion of power—was crumbling.
The reincarnator, Miyuki Uchiha, was digging into his past, unearthing truths he wanted buried.
Desperate and furious, he thought to himself:
Maybe if I could rally the Twelve Kizuki… create a flashy drama… paint myself as the hero and the slayers as villains…
But it was far too late.
Now, all he could do was wait. Like a criminal awaiting judgment. Surrounded not by his demons, but by beings far worse—
The monsters of the multiverse.
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