Although Asagi Aiba found Izumi's lolicon tendencies utterly hopeless, she still threw herself wholeheartedly into the research.
After all, her laboratory had already gathered some of the greatest scientists from multiple worlds.
In less than half a day, they had successfully analyzed the nature of Izumi's power.
And the moment they did, construction on the Plasma Spark Tower immediately began.
With the researchers fully occupied, there was no longer anything for Izumi to do.
So naturally—
He went off to play with lolis instead.
While Izumi was busy drowning in paradise and completely unable to pull himself free from a mountain of adorable girls, something suddenly changed within his world.
"…Hm?"
The instant an unknown presence entered his dimension, Izumi frowned deeply.
Ever since returning, he had intentionally left the dimensional barrier open.
That way, if another lost visitor like Kanna wandered in, they would still be able to enter safely.
Because of that, the moment the intruder appeared, Izumi sensed it immediately.
"Onii-chan, what's wrong?"
Fuse Midori, who had been lying peacefully with her head resting on Izumi's lap, looked up at him curiously.
Why had he suddenly stopped petting her?
It had felt really nice…
At that moment, she looked exactly like a pampered kitten curled up beside him.
Hearing her question, Izumi gently rubbed her head.
"Nothing much."
"Someone just wandered into our world."
As he spoke, Izumi snapped his fingers.
The next instant—
Midori saw it.
A winged girl in armor falling from the sky.
"…An angel?"
"And… not the same kind as Gabriel-oneechan?"
Midori stared in shock at the pink-haired angel descending with her eyes closed.
This angel was clearly different from the ones she knew.
And more importantly—
She had pink hair.
Izumi looked at the girl falling from heaven and slowly grinned.
"Now this…"
"…is one hell of a gift."
The moment the angel appeared, countless people noticed her presence.
Before long, lolis came rushing toward Izumi from every direction, all curious about why an angel had suddenly fallen from the sky.
Gabriel and the others, who had only recently returned, hurried over as well.
And just as they arrived—
The angel opened her eyes.
A cold, emotionless voice echoed from her lips.
"Engraving… commencing…"
As those words fell, a chain materialized from the collar around her neck and wrapped itself around Izumi's wrist.
"Nice to meet you."
"I am the Entertainment-Type Multi-Purpose Angeloid, Ikaros."
"I exist to fulfill all of my Master's wishes."
The moment she spoke—
Every loli present froze in awe.
"So cool!!"
Their eyes sparkled brilliantly.
The scene was simply too stylish.
Pink feathers drifted gently through the air, turning the entire area into a dreamlike fantasy.
Ikaros stared blankly at Izumi without a trace of emotion.
Izumi, meanwhile, looked completely exasperated.
Then he turned toward Asagi.
"Asagi."
"Do me a favor and unlock her emotional system."
At present, Ikaros's emotions had been sealed away.
That was why she looked so empty and doll-like.
Hearing that, Asagi blinked in surprise.
"An emotional system?"
"…She's a robot?"
She stared at Ikaros with growing fascination.
At the same time, Ikaros tilted her head slightly.
Streams of data flashed through her eyes as she rapidly analyzed her surroundings.
"…Threat detected…"
Before she could continue, Izumi lightly flicked her forehead.
"Stop that."
"I order you to cooperate with Asagi."
Ikaros tilted her head once more before nodding obediently.
"Understood."
"I will comply with Master's command."
There was not the slightest hesitation in her response.
She would obey any order Izumi gave her.
Meanwhile, Asagi's scientific curiosity had already exploded.
"A manufactured angel…"
"This is seriously interesting."
Unable to contain herself, she immediately dragged Ikaros away toward the laboratory.
Watching the scene unfold, everyone present couldn't help but stare in amazement.
Gabriel stepped forward at that moment.
"What exactly is that girl?"
"A synthetic angel?"
Izumi nodded.
"That world's a bit unusual."
"She's the strongest angel there."
"Even though she calls herself an Entertainment-Type Angeloid, she's actually a Strategic-Class Angeloid—the Queen of the Heavens."
"She was simply too powerful, so her emotions were sealed away."
"I honestly didn't expect her to end up wandering into our world."
He clicked his tongue in amusement before suddenly turning toward Gabriel.
"Oh right."
"Gabriel, I've got a mission for you."
"Go to that world."
"And bring back all the artificial angels."
"Only the girls, though."
"As for the male angels… kill them."
"Especially the one called Daedalus."
"You absolutely must bring her back."
"She's the creator of the Angeloids."
The instant Gabriel heard the order, her expression turned serious.
"Understood."
"I'll leave immediately."
Just as she prepared to depart, Rias Gremory and Sona Sitri suddenly stepped forward.
"We're coming too."
"We're interested in that world as well."
A world capable of creating artificial angels?
There was no way they wouldn't be curious.
Izumi shrugged casually.
"Sure, go ahead."
"Just finish the mission quickly."
The three nodded before vanishing instantly.
Their world already possessed countless angels—
And even Flügel from Disboard.
But artificial angels?
This was their first time seeing something like that.
Naturally, their curiosity had been piqued.
Maybe that world even had artificial devils.
…Honestly, it sounded entirely possible.
And with that thought in mind, Rias and Sona eagerly followed Gabriel to the new world.
After they left, Izumi headed straight for Asagi's laboratory.
He wanted to see what Ikaros would become once her emotional system had been restored.
...
Meanwhile—
Gabriel, Rias, and Sona used the world imprint attached to Ikaros and traveled directly into the world of Heaven's Lost Property.
They appeared high above Synapse—
A massive floating continent drifting silently through the heavens.
The moment the three arrived, alarms blared throughout the entire city.
One after another, armed Angeloids shot upward into the sky from below.
Seeing this, Rias raised an eyebrow.
"Well…"
"It seems they aren't exactly welcoming us."
"But whatever."
"Let's finish Izumi's mission first."
Rias had absolutely no intention of wasting time talking things out.