— — — — — —
[World Travel: Guild members can use points to travel between worlds. Each trip costs 100 points and lasts for one day.]
[Time passes equally in both worlds]
[You can only travel once every five days.]
[PS: Points are earned through daily check-ins in the guild chat — each check-in grants 10 points.]
[PS: The purpose of this guild chat is to facilitate friendly communication across worlds. Please follow civilized discussion rules.]
"So… basically just a short vacation, huh?"
Kazuma muttered to himself after reading the new update.
This was totally different from using mission points to travel — the point-based system only let him stay for one day, and time flowed the same in both worlds. Plus, there had to be a five-day cooldown before the next jump.
"Alright then… where's the check-in button?"
He scrolled through the guild chat for a while before finally spotting a tiny, half-hidden icon in a corner.
"Seriously? They buried it this deep?"
Kazuma couldn't help but grumble. Then, after exploring all the new functions, he summarized what he found and posted it in the group chat.
『Enju』: "Travel… to other worlds?!"
『Enju』: "So, can we go to Miko's world? What's it like over there?"
Enju's reaction wasn't too different from Miko's — a simple, "Oh, okay," and acceptance.
For kids whose worldview was still forming, hearing about other worlds wasn't that strange. After all, a child's imagination can reach anywhere.
『Miko』: "Hmm, it's pretty peaceful… as long as you don't see those things."
『Miko』: "And Enju, I'm older than you! You should call me Miko Onee-sama!"
『Enju』: "Eh? No way. You're weak and slow at your job. Why should I call you Onee-sama?"
『Miko』: "Wahh—! I am working hard, you know!"
Miko flopped onto her bed, clutching her chest dramatically. It felt like an invisible blade had stabbed her heart.
Sometimes, lies don't hurt. But the unfiltered honesty of a child? That cuts deep.
『Kayano』: "A peaceful world… I wonder what that's like."
Kayano's mind drifted. Maybe it's a place where everyone has food to eat and clothes to wear.
What a wonderful world that would be.
For her, simply having a full meal and new clothes — that was happiness. She couldn't even imagine what peace looked like beyond that.
『Sanae』: "If the world were peaceful, maybe people wouldn't hate or bully us anymore."
Sanae's dream was simple: to live without being despised, without being hurt. That, to her, was true happiness.
『Enju』: "Judging from Miko's attitude, her world must be pretty safe."
『Kayo』: "Maybe everyone there has a place they belong."
Reading their innocent, heartfelt messages, Miko felt a strange tug in her chest.
Being full, wearing nice clothes — that was just her everyday life. And aside from the occasional haunting, not being bullied was perfectly normal. As for having a place to belong… she had her own home, her own family. Didn't everyone?
Yet these girls saw those things — her mundane, ordinary life — as a dream they could only long for.
Tears welled in Miko's eyes. Girls really were too quick to cry sometimes.
『Kazuma』: "Hey, don't look so depressed. Didn't I just take you all shopping? New clothes, a fancy meal, even toys?"
『Kazuma』: "And about being bullied — I already told you, if you don't want to be bullied, be the one who hits first! Take down anyone who tries to mess with you. Problem solved."
『Kazuma』: "Also, Kayo, stop brooding about your 'purpose in life' and 'where you belong.' You're still a kid watching magical girl anime. Don't overthink it."
『Kazuma』: "Spend that time doing a few more quests with Enju. You know how expensive those anime figures are, right? Especially the limited editions — and you didn't buy one, you bought three! What were you thinking?"
『Kayo』: "I-I did not! I don't even like anime! I'm mature and smart, I wouldn't like such childish stuff!"
『Kayo』: "It was Enju! She made me buy them! She said friends should have matching stuff!"
『Kayo』: "It's not because I like it, okay!"
Flustered, Kayo scrambled to defend herself, her little secret hanging by a thread.
『Kayo』: "I'm telling the truth! You guys have to believe me!"
『Enju』: "Yup! Kayo's telling the truth! She doesn't even like anime and cartoons, but she still watches them with me and helps me buy merch!"
『Enju』: "She's my best friend ever!"
Reading that, Kayo felt her eyes sting. What a silly girl — believing everything so easily. And yet… why did her heart feel so warm?
『Miko』: "Aww… you're all so cute. I love you, Kayo!"
Kayo's face flushed crimson. She looked around in a panic to make sure no one could see her — then hid herself even deeper, just in case.
『Kayano』: "Life isn't perfect, but we have Onii-Chan. He taught us how to survive. We help each other, we work together… I believe one day, we'll create a peaceful world of our own."
Kayano never imagined she'd say something like that. Before Kazuma, surviving today was all they ever thought about.
The future didn't exist for them.
But now… it did.
『Miko』: "Guild Master… you act all scary, but you're always doing these gentle things behind the scenes."
『All Members 』: "Onii-Chan is the best! We all love Onii-Chan!" x99
The chat exploded in unison. Not one, not two — every girl said it at once.
『Kazuma』: "Good. Then it's decided. Keep checking in for points. Ten days from now, I'll take you all on a trip to Miko's world."
『Kazuma』: "You deserve a break — time to see what another world looks like. Oh, and Miko, I'll leave the kids with you."
『Miko』: "No problem! I'd love to meet Kayo and the others. Um… how many are we talking about?"
『Kazuma』: "Not too many. Just about a hundred. You can handle that, right? I believe in you."
『Miko』: "Wait—WHAT?!"
Miko froze. For a second, she swore she could feel a vein pop in her forehead. A hundred kids? By herself?
She was still in high school! Was she about to become mom to a hundred little girls?! No—big sister. Definitely big sister.
Still… wasn't this moving a little too fast?!
『All the Lolis』: "Yay! We love Onii-Chan and Miko-neesan!"
The chat filled with cheerful messages. The girls were beyond excited — already dreaming about what this new world would be like.
---
Meanwhile, somewhere far away, inside a certain hospital…
In a hidden, heavily modified room that looked more like a hacker's lab than a clinic, a tall woman in a doctor's coat sat staring at her computer screen. Her expression was cold, sharp — and very very tired.
"Damn it," she muttered, clicking rapidly through files. "Still no trace of him. But that guy's definitely not a cyborg either."
Her crimson nails tapped the desk. "So where the hell did he come from?"
Doctor Sumire Muroto. One of the so-called Four Sages and the person in charge of the "New Human Creation Plan" in Japan.
She had been investigating the mysterious man named Kazuma for nearly a month now. In that time, she'd barely slept, and her once-elegant hair was now a messy tangle. Even her beloved experiments and preserved corpses sat neglected in the corner.
Every scrap of data she found about Kazuma led nowhere. No records. No sightings. Not even a single photograph. Everything about him was based on speculation — as if he simply appeared out of thin air.
Then suddenly—BEEP! BEEP! BEEP!
An alarm blared through the room. Sumire's head snapped toward the door, but before she could move, she felt the cold press of a gun barrel against the back of her head.
"Sumire Muroto," a calm voice said behind her. "One of the Four Sages. Rumor says you can read an entire library in three days and put all of it to use. That sound right?"
Sumire didn't need to turn around to know who it was. That emotionless tone — that faint, mechanical precision — it could only belong to Fairy Tail
"So it's you," she said lightly. "You're right. I'm smart, but I'm no fighter. So maybe take the gun off my head? You're making it hard to think."
She glanced around using her peripheral vision. Red eyes gleamed in the darkness, not one pair, but many.
Cursed children from Fairy Tail.
Sumire sighed softly. She'd always known this day would come, but she hadn't expected it so soon. She had gone to great lengths to hide her trail — firewalls, false identities, ghost servers — yet in the end, none of it mattered.
These Cursed Children… they weren't lambs anymore. Under his leadership, they'd turned into wolves.
"We are used to being careful," said a girl's voice behind her. "But relax, Doctor. We're not here to kill you for investigating us."
Sumire blinked. "No?"
"We came for something specific," the girl continued. "We want the formula for the inhibitor. You're one of the smartest people in the world — you should know how it's made."
"We'll pay for it, of course. We're not here to rob you."
Sumire's lips curved into a faint smile. "Ah… the inhibitor. Of course. It's vital for all of you, isn't it? Every member of your guild is a Cursed Child."
She leaned back slightly in her chair. "The Gastrea Virus eats away at you every day. You can buy suppressants, or steal them, but as long as you can't make your own, you'll always be at someone else's mercy. Naturally, you'd want to control production yourselves."
She paused for a moment, then added, "Unfortunately, the main formula is only known by the International Initiator Supervising Organization headquarters (IISO). Tokyo's branch doesn't have the original data."
Her smile deepened. "So, since you can't reach the main branch, you decided to come after me. I feel so important all of a sudden."
She chuckled dryly. "Well, as long as you need me, I won't die tonight, will I? Maybe I can make a few requests of my own?"
"No, and who said you could stop us by refusing? If I want something, I can get it in a hundred different ways."
A man's voice cut through the air. Low, steady — and utterly confident.
Sumire froze. A man? But all the Cursed Children are girls… then that means—
Her blood ran cold.
The guild master of Fairy Tail… Kazuma.
A wave of primal terror shot through her body, every nerve screaming. Her instincts told her the truth before her mind caught up — she was standing in the presence of a predator. Her genes reacted the same way a human's once did when staring down a natural disaster or a monster in the dark.
Pure, helpless fear.
Kazuma stood calmly behind her, holding a blank, unmarked book in one hand. It wasn't an ordinary book — it was a grimoire, a magical artifact capable of copying and reading the knowledge within someone's mind through touch alone.
A convenient tool — though not a perfect one. The copying process took time, and the words it recorded would vanish after an hour.
"Alright, Kayo," Kazuma said, tossing the book toward her. "You've got the best memory here. I'll leave this to you. Learn everything you can. From now on, you're the guild's official scientist."
He'd skimmed the book's contents but understood little of it. It wasn't a matter of intelligence — it was a matter of systems. He came from a world of magic. They came from a world of science. And the two simply didn't speak the same language.
"Got it," Kayo nodded and began to read rapidly. Her eyes moved at an impossible pace — ten lines at a glance, every word burned instantly into memory.
Within moments, she found what they were looking for. Then, unexpectedly, something even more important.
"Master, look at this!" she said, tugging at Kazuma's sleeve, voice trembling with excitement.
"What is it?" he asked, leaning over her shoulder.
Kayo pointed at a line of text and read softly:
"Gastrea Virus Treatment Formula — a compound capable of reducing infection rate through targeted cellular repair. Possibly a complete cure for the Gastrea Virus."
Her voice was shaking now. The inhibitor could only slow down infection. But once a Cursed Child's infection rate passed fifty percent, they would inevitably transform into a Gastrea creature — a one-way process.
A cure meant hope. A way to bring the infection back down.A way to live without fear.
If this formula could truly work, then they'd no longer have to worry about losing themselves in battle — or dying because they got too close to the monsters they fought.
"So you even know about that," Sumire said dryly, turning to look at them. "That treatment was only theoretical. No one but me and the other three sages even knew it existed."
She gave a bitter laugh. "Looks like Master Kazuma here used some special trick to read my mind. That's impressive."
Her tone softened slightly. "But it's useless. That treatment formula was just a concept, nothing more. We never had a real method to make it work. It's a fantasy — a scientist's daydream."
"Hmm…" Kazuma tilted his head and reached into his Treasury.
If something could exist, then somewhere, in some version of the multiverse, it did exist. And his Treasury could access it.
A moment later, he pulled out a small vial filled with shimmering red liquid and waved it casually in front of her.
"You mean this thing?"
Sumire's eyes widened.
Kazuma smiled faintly. "My Treasury contains everything that has ever existed — past, present, future, or even imagined. Maybe your world hasn't created this cure yet, but another one has."
He twirled the vial between his fingers, watching the liquid glow faintly in the dim light.
"Infinite worlds mean infinite possibilities. And if something can exist…"
He looked her dead in the eye. "…then in my hands, it already does."
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