With no need to attend school anymore, Izumi suddenly found himself incredibly bored.
Avrora and Ophis sat beside him on the couch, casually eating snacks while watching television.
The entire world had entered a state of peace.
Aside from occasional clashes with a few minor worlds, the greatest threat the DxD world had ever faced had already been eliminated by Izumi.
Even the cores of those enemies had been taken by him and handed over to Aiba Asagi and the others for research.
Izumi glanced at the many items stored in his system inventory and fell into thought.
Most of the things he possessed could already be exchanged through the System.
But he hadn't done so.
If he converted everything in his inventory, he would probably be able to obtain an enormous number of powerful rewards.
However, because of his current strength, there was simply no need.
In this world, Izumi was already invincible.
There were barely any individuals left in the DxD world who could defeat him.
Even if he traveled to other worlds, he would still stand among the strongest.
Because of that, he had no urgency to exchange those items.
If someday he encountered an enemy he truly couldn't defeat—
he could simply convert everything then.
After glancing at the Gate of Traversal within the System, Izumi quickly made a decision.
If life in this world had become boring…
then he would just visit another world.
With that thought, Izumi sat upright and spoke to the two girls beside him.
"Ophis, I'm planning to travel to another world for a while."
"Do you want to come with me, or return to my world for now?"
Hearing that, both Ophis and Avrora blinked in surprise.
Avrora's eyes sparkled almost instantly.
"Another world?"
"I want to go!"
Ophis quietly nodded as well.
She clearly wanted to follow.
Seeing their reactions, Izumi chuckled softly.
"In that case, you two should go back to my world first."
"Once I reach the new world, I'll see if there's anything interesting. If there is, I'll call you out."
"Also, contact the others and ask them too."
"If anyone wants to come along, I'll bring them out after we arrive."
"Those who don't want to travel can just stay here."
Both girls had no objections to the arrangement.
They immediately began contacting the others.
Meanwhile, Rias received Izumi's message while she was in the Underworld.
Without hesitation, she used a magical teleportation circle and returned.
Over the past few years, Rias had become far more mature.
Her abilities had grown significantly, and she was now considered one of the capable leaders of the Underworld.
Along with her came her peerage members—Kuroka, Koneko, and the others.
Not long after, Sona Sitri arrived as well.
And accompanying her was none other than Serafall Leviathan.
Serafall had once begged Izumi to teach her how to create magical girl transformation devices.
In exchange, she had practically sold both herself and her younger sister to him—
and even packaged Sona's entire peerage together as a bonus.
Within moments, Izumi's house became incredibly lively.
A large group of girls gathered together, chatting endlessly as their voices filled the room.
Looking at the sheer number of girls surrounding him, Izumi muttered to himself.
"If I weren't this strong… my kidneys definitely wouldn't survive."
Once everyone had arrived, Izumi brought them all back to his personal world.
His world had fused with the Nasuverse, and its development had been progressing extremely well.
The enormous World Tree where Izumi lived served as the core of that world.
Heroic Spirits often gathered there for feasts and celebrations, making the place lively almost all the time.
The Cursed Children had also begun attending school in the merged world.
However, because their bodies couldn't grow normally, they still looked like little girls.
The same was true for Illyasviel, Miyu, and Kuro.
Everyone around them had slowly begun to grow up.
Only those three remained exactly the same.
It was driving them crazy.
Unfortunately, there was nothing they could do about it.
Izumi actually had a way to let them grow up.
But he chose not to use it.
Or rather—he didn't want to.
After all…
Lolis were just too great.
Because of that, Illya could only watch helplessly as her classmates grew taller day by day, their figures becoming more mature.
The jealousy between the three of them had reached ridiculous levels.
After sending everyone back, Izumi rubbed his chin thoughtfully.
So… who should I bring along this time?
Avrora and Ophis?
That probably wouldn't work.
If they ended up in an ordinary world, they'd get bored quickly and start demanding to return.
Just as Izumi was hesitating—
someone happened to walk past nearby.
It was Mash Kyrielight.
The moment Izumi saw her, his eyes lit up.
"Alright. It's decided—it's you!"
Mash froze in confusion.
"Senpai?"
Before she could say anything else, Izumi had already opened the Gate of Traversal.
Grabbing Mash by the hand, he immediately stepped through.
"Eh—wait, Senpai! What are you trying to do?!"
Mash was completely bewildered.
Before she even understood what was happening, Izumi had already dragged her away.
Being held by the hand like this was incredibly embarrassing.
Although she and Izumi were quite close—and he teased her often—
they had never done something this intimate before.
Besides, Izumi was usually busy.
She rarely had chances to see him.
This time, however…
Izumi planned to take Mash with him to a new world—
and finally make her his.
Without explaining much, Izumi stepped through the portal.
The two of them disappeared from the world entirely.
When Izumi and Mash emerged from the Gate, they found themselves standing in the middle of ruins.
The sky above them was crimson red.
Blue ash drifted through the air like falling snow.
The entire world seemed to be crying out in despair.
The blood-red sky.
The strange blue dust.
Everything about the scene made it clear that this world was far from ordinary.
Mash stared in shock.
It wasn't the first time she had seen such a devastated world.
Back in the EXE world, the aftermath of Izumi's battle had once plunged the entire planet into despair as well.
But the world before them now felt eerily similar.
Mash frowned slightly.
She didn't like this kind of sky.
Just as she was about to speak—
some of the blue ash in the air entered her lungs.
"Cough—! Cough!"
Mash began coughing violently.
Seeing this, Izumi raised an eyebrow and gently patted her shoulder.
The ash inside her body was instantly expelled.
A faint protective energy enveloped her, filtering out the dust in the air.
"Whew…"
"Thank you, Senpai."
Mash sighed in relief.
Looking around again, she quickly realized something.
Izumi had brought her to another world.
Her curiosity immediately grew.
"Um… Senpai?"
"What world is this?"
Hearing her question, Izumi lifted his gaze toward the red sky.
"This…"
"…is a world of despair."
"In this world, humanity is the lowest of all races."
"A race that doesn't even possess a name."
Izumi already knew exactly where they were.
Because not far away—
a certain small figure had already revealed the truth of this world to him.