"So… Lala, Momo, and Nana, right?"
The moment Izumi saw the three girls, he casually called out their names.
Especially her.
She had boldly proposed to him the instant they met.
When Lala heard him say her name correctly, her eyes sparkled even brighter.
"So you really do know me!"
She leaned forward until her face was only inches away from his, staring at him with glittering curiosity.
"Izumi-kun, are you really omniscient?"
Lala had already spent quite a while in this world.
Not only had she settled down here herself, she had even brought her younger sisters along.
Eventually, she met Asagi Aiba, and after learning that Asagi was also a researcher, Lala became intensely interested in her work.
Especially the magic of this world.
A system where technology itself reproduced magic fascinated her beyond belief.
After purchasing several modern magic formulas, she casually reverse-engineered them, then modified and recreated entirely new spells of her own.
The result utterly stunned Asagi and the others.
Lala's genius was monstrous.
Because of that, during the period Izumi had been away, Asagi and the three sisters had grown surprisingly close.
After settling into the Dimension World, the sisters often spent time with the many little girls around Izumi as well.
And from those girls, the name they heard most often was—
Izumi.
Again and again.
Naturally, the three sisters became extremely curious.
What kind of person was Izumi, exactly?
Now that they finally met him, all three were immediately dazzled.
Their first impression was simple:
He was absurdly handsome.
Not merely "good-looking," but so overwhelmingly attractive that it almost felt unfair.
And beyond that…
There was a strange aura around him.
A scent. A presence. Something indescribably comforting and irresistible.
The three of them instinctively wanted to get closer.
If not for basic restraint, they might have literally leaned in to sniff him.
Lala, however, had no restraint whatsoever.
That was why she immediately proposed.
After all, wasn't her father always trying to force her into marriage?
Then who in the universe could possibly be more perfect than Izumi?
He was handsome.
She liked him instantly.
And most importantly—
He was unbelievably powerful.
Powerful enough that he might even beat her father into submission.
So naturally, she asked him to marry her.
Her declaration instantly caused the other two sisters to react.
"Big Sister!!"
Nana's face turned red in shock.
"That's way too shameless! You can't suddenly propose to someone you just met!"
Unlike Lala, Nana still possessed a normal sense of embarrassment.
She was curious about Izumi…
But not enough to immediately ask for marriage.
Meanwhile, Momo's eyes suddenly lit up.
"I actually approve," she said with a smile.
"If possible, I'd like that too."
Smack!
Nana immediately slapped the back of her head.
"Momo! What are you saying?!"
Her entire face burned bright red.
"That's shameless!"
She seriously felt like both her sisters had lost their minds.
Izumi, meanwhile, watched the chaotic trio with an amused smile.
Beside them, Asagi looked utterly speechless.
"So let me get this straight…"
"I treated you like my best friend, and now you're trying to steal my boyfriend?"
Lala simply laughed.
"Well, you already said Izumi-kun has several girlfriends anyway~"
"So what's the problem?"
Then she turned back toward Izumi, eyes sparkling once more.
"So? What do you think?"
Izumi proudly raised his chin.
"I have no objections."
Why would he?
A beautiful girl was practically delivering herself to him.
Refusing would be unreasonable.
Nana nearly collapsed from shock.
"That was way too casual!!"
Did she seriously just gain a brother-in-law in under five minutes?
Was this some kind of joke?!
Meanwhile, Lala exploded with joy.
She immediately wrapped herself around Izumi.
"Then let's go meet Father!"
As expected of Lala Satalin Deviluke.
Her train of thought moved at terrifying speed.
Even Izumi couldn't help laughing bitterly.
Still, he shook his head.
"Sorry."
"I probably can't go to your world."
"Huh?"
Lala blinked.
Izumi explained helplessly,
"I'm too strong now."
"If I enter your universe directly, I might literally crush it."
The current Izumi had already surpassed ordinary dimensional limits.
Unless a world possessed sufficient stability, his mere existence could overload it.
It would be like forcing something impossibly massive into a container far too small to hold it.
Lala paused for a moment before quickly understanding.
"I see!"
Then she happily clapped her hands.
"In that case, I'll bring Father and Mother here instead!"
The instant she finished speaking, she immediately rushed out of the laboratory.
Nana and Momo hurried after her.
The three Deviluke princesses vanished from Izumi's world in the blink of an eye.
Asagi stared blankly at the empty doorway.
"…Are alien princesses always this aggressive?"
Izumi shrugged.
"This is just a special case."
"She's naturally straightforward and cheerful."
"When she likes someone, she says it immediately without hesitation."
Then he smugly touched his chin.
"And besides…"
"I'm just too handsome."
Asagi instantly rolled her eyes.
"Oh, shut up."
"Stop acting smug."
Though internally…
She couldn't deny it.
Especially now.
Ever since Izumi inherited Azathoth's power, his entire existence radiated an overwhelming charm that made others instinctively want to approach him.
But there was absolutely no way Asagi would admit that aloud.
Izumi naturally noticed what she was thinking.
Chuckling softly, he suddenly pulled her into his arms.
"You know…"
"I recently learned a new ability."
Asagi narrowed her eyes.
"…What are you planning?"
Izumi grinned.
"I'll let you experience what it feels like to return to the very beginning."
The moment he spoke, a mysterious power flowed from his body.
Then, right before Asagi's stunned eyes—
Her body began changing.
She was becoming younger.
Originally, her physical state had already been permanently stabilized.
Yet now…
Time itself rewound.
She returned to the appearance and condition of her seventeen-year-old self.
Asagi stared at him blankly.
"This really is…"
She didn't even know what to say anymore.
Of course she understood what Izumi intended.
That realization immediately made her glare at him in annoyance.
"We've already been together this long…"
"And you're still playing these games?"
Honestly…
It was troublesome.
Because every time he got serious, she knew she'd end up unable to leave bed for days.
Asagi bit her lip lightly before punching Izumi in the chest.
"…Let's go back home."
"Not here."
The moment Izumi heard that, he instantly understood.
Without another word, he disappeared together with her.
And once again—
He allowed her to relive the overwhelming intensity of youth.