Under Senju Kayo's meticulous arrangements, everything was finally ready.
Without further delay, Izumi split the invitation into countless fragments and scattered them across the multiverse.
With that done, there was only one thing left to do—
Wait.
Now, he simply awaited the arrival of the first visitor.
Anyone who accepted the invitation would appear in a designated plaza.
It was also the location where exchanges and transactions would take place.
At the moment, the area was being personally managed by Kayo and several of the Cursed Children.
Some of the girls had already gone off to open shops of their own.
For example—
Tina Sprout had gathered a group and opened a weapons shop.
From standard firearms to heavy artillery—
They had everything.
Rocket launchers, missiles… even things that probably shouldn't exist in bulk.
Most of it had been created during their idle time.
Honestly, Izumi was starting to suspect—
They might have even developed nuclear-level weaponry.
And the scary part?
He didn't doubt it for a second.
With hundreds of thousands of Cursed Children, many of them exceptionally intelligent—
And quite a few having studied under invention-loving Heroic Spirits—
Creating something like that wouldn't be surprising at all.
They were, without a doubt, monsters in their own right.
After strolling through the city for a while, Izumi nodded in satisfaction.
Though it was still somewhat bare—
It wouldn't stay that way for long.
Soon enough, this place would be bustling with life.
...
Meanwhile—
In an ordinary, peaceful world—
A blonde girl suddenly noticed something strange.
An unfamiliar invitation had appeared on her desk.
Her brows furrowed immediately.
"…Who left this here?"
"And why did Hisako just leave it like this…?"
Muttering in dissatisfaction, she picked up the invitation and opened it.
The moment she did—
A mysterious force enveloped her.
Before she could even react—
She vanished.
When her vision cleared—
She found herself standing in a completely unfamiliar place.
A vast, awe-inspiring city stretched out before her.
At its center stood a colossal tree that seemed to pierce the heavens—
Its height immeasurable.
And she herself was standing in a massive plaza.
"…Huh?"
Her mind went blank.
"W-What is this place?!"
This was no ordinary confusion—
She was genuinely stunned.
Just moments ago, she had been in her room.
Now she was here?
Looking down, she realized—
The invitation she had been holding had disappeared.
"…Was it because of that?"
A chill ran down her spine.
Just as anxiety began creeping in—
A small girl approached her.
The girl looked at her curiously before speaking.
"Welcome to the Dimensional City."
"Is there anything I can help you with?"
She was one of the assistants Kayo had assigned here.
The moment the blonde girl appeared, she had already noticed—
And came over immediately.
Hearing her, the blonde girl hesitated before asking nervously:
"Um… where exactly is this place?"
"Dimensional City…? Is this still Earth?"
"…Did I somehow end up on another planet?"
The little girl couldn't help but sigh.
"Big sis… this isn't Earth."
"You're already in another world."
"You're actually the very first visitor here."
"…Didn't you notice the information in your head?"
Her blunt tone carried a hint of exasperation.
Being looked down on by a child—
The blonde girl felt a bit offended.
But following that reminder, she quickly realized something.
At some point—
New information had appeared in her mind.
"Dimensional City…"
"A super world formed by the fusion of multiple worlds…"
"A place where anything can be bought—even supernatural abilities…"
After sorting through the knowledge, her eyes widened in shock.
"A place like that… really exists?!"
"That's incredible…!"
She was genuinely amazed.
This was far beyond anything she had imagined.
And at that moment—
A figure suddenly appeared before her.
"Welcome to another world, Erina."
The person who appeared was none other than Izumi.
At a glance, he had already recognized her.
The girl assisting nearby instantly lit up with excitement.
"Izumi-nii!"
She rushed straight into his arms.
She was one of the girls who had grown up under his care—
Her name was Hatsuyuki, a name given by Kayo.
"Good work, Hatsuyuki."
"You can go play now."
"I'll take over from here."
Hearing that, Hatsuyuki rubbed against him affectionately before nodding.
"Okay!"
"I'll leave this slow big sis to you~"
With that, she happily ran off.
"…Did I just get insulted?"
Erina twitched slightly, feeling oddly offended.
But more importantly—
Why did this man know her name?
Looking at him cautiously, she asked:
"…Excuse me, who are you?"
Izumi smiled faintly.
"I'm Izumi."
"Come with me."
"I'll show you around this world."
"Though… you don't really have anything valuable on you right now."
His casual remark instantly hit a nerve.
Erina froze.
"…Excuse me?!"
She—a proud lady of Tōtsuki Academy—
Was being looked down upon?!
Unbelievable!
But… thinking about it—
In a place like this, ordinary money probably meant nothing.
As Izumi guided her through the city, his explanation confirmed it.
"In this world, gold and money are completely useless."
"We have no need for such things."
"If you want to buy something…"
"You can go over there and sell your culinary knowledge."
"Knowledge-type assets can be sold without losing them."
"You'll still retain everything you know."
"But abilities and talents are different."
"If you sell them, they're gone."
"For example—your God Tongue."
"If you were to sell it…"
"This world would extract that ability from you."
"And your sense of taste would return to that of an ordinary person."
Erina instinctively covered her mouth.
That ability was everything to her.
"And in exchange," Izumi continued,
"You'll receive a special card."
"It's bound to you personally and records your balance."
"The points stored on it…"
"Are the universal currency of this world."
The more he explained—
The more Erina realized.
She had stepped into a place far beyond common sense.
A world where even talent itself could be traded.