"Oh, right, there are a few things I need to remind you about."
Rias suddenly recalled something and said, "You can fight however you like, but do not proactively expose yourselves as people from a Other World. This is because a very powerful dragon guards our world, making it difficult for people from Other Worlds to enter or leave."
"If they find out, people from various Pantheons who want to cause trouble might dissect you, hoping to find a way to bypass the Great Red and invade the Other World."
"That sounds truly terrifying~" Kisuke Urahara said, dragging out his words.
"It is my duty as the 'King' to remind you. If you insist on seeking death, I won't stop you."
Rias glanced at Kisuke Urahara.
"Alright, we should go now."
Rias clapped her hands, and the next moment, everyone was transferred to the world of High School DxD.
The small world created by the magical device belongs to Rias, and they could be transferred directly using the Chat Group.
This seemed to be based on the will of the group members; Rias had sensed this when they traveled through.
"This is the Devil's world?"
The gloomy sky, the magnificent mansion, and the strange energy filling the air.
Fortunately, this energy could be converted into reishi after being absorbed by spiritual bodies.
In fact, their physical bodies were specially manufactured by Rias using the Magical Device: Holy Grail, which is why they were capable of Energy Conversion—a technology Rias had already mastered.
The Racial Conversion of Devil Chess Piece fundamentally involves Energy Conversion, but that process modifies the physical body to possess dual characteristics.
For example, Himejima Akeno possesses both the Light Power of the Fallen Angels and the Magic Power of the Devils.
However, the Energy Conversion Rias referred to was not limited to these surface manifestations, but rather an Omnipotent Energy.
The energy within the body can be converted into various characteristics and various natures.
Characteristics refer to attributes like Power of Destruction, Time, Water, and Ice.
Natures refer to Light Power, Magic Power, Martial God Power, Divine Power, and so on.
"It really only took an instant."
Rias confirmed the Time, then used Heavenly Transfer to retrieve the letter left in the room and destroyed it with Power of Destruction.
Since it only took an instant, the letter she left just in case was no longer needed.
"So, what shall we do next, Lady Rias~"
Kisuke Urahara said, his eyes distant.
"Follow me."
Led by Rias, the group entered the villa before them.
In the courtyard, they saw a maid walking towards them.
"Young Mistress, did you go out?"
Grayfia looked at Rias, who had returned from outside, in surprise, asking, "And... who are these people?"
Since birth, Rias rarely went out. Although she had gone out to play a few days ago, that was with Sona.
Besides that, the aura emanating from these people was very strange, yet it was still a human aura.
Although they were human, the energy they possessed was immense; even the weakest among them emitted energy equivalent to a Middle-Class Devil.
Several of the strongest individuals even reached the level of a High-class Devil, which astonished Grayfia.
Where exactly did Rias manage to "abduct" these people?
"I went out for a short trip."
Rias smiled and said, "These people behind me are my chosen peerage... Hmm, because these two groups have some conflict, it's best to arrange them separately and teach them some rules."
"I see."
Grayfia nodded, then looked at the people.
There were twenty-five people in total, roughly divided into three teams.
One side was led by the person wearing glasses, totaling eleven individuals.
The second team was led by a somewhat slovenly Blonde Youth, also consisting of eleven individuals, who seemed to have a small faction split within them.
The last side was the weakest, with two people standing directly behind Rias, looking at... the Little Girl Rias was holding hands with?
Likewise, that Little Girl's aura was very strange.
Rias said the two teams had conflicts, but it didn't look like it; perhaps the intensity was beyond mere conflict.
One side, whose aura was closer to that of Devils, was wary of the other team.
The side whose strange aura was less intense harbored intense hatred for the leader of the other team.
It was precisely because of this that Grayfia judged that this kind of hatred was no longer within the scope of conflict!
Rias really brought back trouble this Time.
However, with this level of Fighting Strength, the trouble is worth it, as long as these people don't harbor ulterior motives... "Oh, right."
Rias said, "I am preparing to hold a Rating Game, please help me arrange it."
"Understood, Young Mistress."
Grayfia bowed slightly.
If it was with these people, the chances of winning would be very high, even without Rias participating.
Especially since Rias herself is not weak, and her mind is mature, Grayfia had no reason to stop her.
As Grayfia left, taking the Shinigami and Hollows with her, Rias brought Nelliel and her two fracción to the Gremory Family's villa.
Although Grayfia was strict and serious, she had good judgment and saw that Rias did not fully trust these people, so she led them toward the Vacant Villas.
Nelliel, similar to Toujou Kuroka and the others, would reside in the main residence of the Gremory Family members.
After arranging the rooms for Nelliel and her fracción, Rias returned to her own room and contacted Serafall through a Magic Square.
On the other side, led by Grayfia, they were arranged into two villas.
The Underworld territory of the Devils is vast; the Gremory territory alone is the size of Honshu, equivalent to a smaller province in China.
Because Sirzechs serves as a Devil King, Gremory's status is not low, holding considerable standing in the Underworld.
Aside from the Upper-Class Nobles, there are many places in the Underworld with poor mountains and harsh waters, and they are even more widespread.
In ancient Times, the Underworld was a veritable 'Hell'.
In other words, these Beautiful Landscapes might have been artificially Created by the Devils.
A mere two villas are hardly worth mentioning in comparison.
Along the way, Grayfia educated them about the Underworld, informed them of what was not allowed, and subsequently warned them.
As the wife of a Devil King and one of the Strongest Female Devils, Grayfia was extremely meticulous, and Rias felt very reassured having her handle the arrangements.
In contrast to Grayfia's composure, the Shinigami and Hollows were remarkably quiet.
This was because, in their perception, Grayfia possessed power far exceeding their own.
That immense oppressive feeling made them feel constrained and uneasy just by her standing there.
They were also very surprised by this, having never expected 'a mere maid' to possess such immense power.
Naturally, they wouldn't know that Grayfia was not a maid in the ordinary sense, but the wife of a Devil King, the strongest Queen!
Meanwhile—
Having received Rias's message, Serafall hurried over.
"Yo-ho, did Little Rias miss me?"
Serafall teleported over wearing a Flowing Outfit.
Although the outfit seemed flowing, the transformed magical device contained a Small Spell.
If someone focused their attention on the hem of the skirt, they would constantly be in a state of "feeling like they can see it, but actually cannot."
Doesn't that sound very Magical Girl-like?
"I called you over for a bit of Serious Business."
Rias said this, but then used Heavenly Transfer to move Serafall onto the bed.
Looking down from above, Rias's condescending gaze gave off an especially stimulating feeling.
"But the Serious Business can wait a moment, hmm... maybe this counts as Serious Business too?"
Slowly unbuttoning her, Rias had a thought and condensed a Whip using Magic Power.
"I always felt you were suited for the M Role. Want to give it a try?"
Under Serafall's confused gaze, Rias's smile gradually turned strange.
Following that... cracking sounds emerged from the room, along with Serafall's various wails and cries~
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