Rias was creating a grimoire.
A so-called grimoire was completely different from a normal book.
Ordinary books are written in text and then read.
A grimoire, however, has one's own power dwelling within it in the form of words, allowing the person viewing the grimoire to correctly understand its contents.
In other words, the grimoire itself contains power.
At this moment, what Rias was doing was not mass-producing, but creating a grimoire from scratch.
Because the Fusion Equation was a Formula she had created herself.
Just organizing her thoughts and writing them down in detail would take some time.
Next would be the theories for the unfinished parts, following those theories to complete her own evolution.
Of course, she wasn't certain that Jibril would definitely agree to the exchange.
It was just that without Jibril, there would always be a next person who would offer equivalent knowledge or items.
By the time she finished the work, a day had already passed.
Jibril had sent a response more than ten hours ago, but it was only now that Rias sent the created grimoire to Jibril.
"I see, so this is the core Magic Formula of the Flugel."
After the exchange with Jibril, Rias examined the contents and couldn't help but fall into a trance.
Wonderful, as expected of a Magic Formula compiled by the strongest God of War.
Even though he is a God of 'War', this Magic Formula is simply too powerful.
Thinking about it carefully, it wasn't strange.
In No Game No Life, beings above Rank Six are life.
God Species, Fantasy Species, Elementals, Dragon-kin, Giant Species.
Among them, the God Species go without saying, the Fantasy Species are clearly not god-made, and the Dragon-kin inherit the power from the dawn of heaven and earth.
While there are few settings for the Giant Species, one can roughly analyze from the limited information that they were not man-made either, but life born at the beginning of the world.
In other words, among the life forms above Rank Six, only the Flugel are god-made life!
Exactly so, the Flugel is known as the most perfect Creation.
Not just in power, but in the field of creating life, Artosh also stands above the God of the Bible!
"Though it's strong, it's far too difficult to truly master it and create a Flugel member."
Moreover, the raw material for creating the Flugel is element, and this world doesn't have such creatures.
And the element Jibril gave weren't even enough to form a single wing of a Flugel member.
Can I only slowly master the Magic Formulas within it for now?
Rias thought to herself.
@Rias Gremory.
Unohana Retsu: "Shall we trade?"
Eh, Unohana Retsu is actually being so proactive?
Rias was somewhat surprised.
Although they had sparred before, compared to that, while Unohana Retsu enjoyed it, the one who gained more benefits was Rias.
Given Unohana Retsu's personality, she should be more composed.
Jibril wanted to enter her world, but Unohana Retsu did not agree.
She had also not agreed to Rias's trade request, instead suggesting a spar and a meeting.
However, this also suited her wishes perfectly.
If there was someone who frequently opened the Arena and allowed Rias to conduct experiments inside, she figured the time it would take for her to become one of the Transcendents could be shortened.
After all, time in the Arena is paused relative to the outside world, and many experiments unsuitable for the outside could be moved into the Arena.
Rias: "What trade?"
"Zankensoki, as well as Return and Asauchi."
Unohana Retsu: "In return, I need that move of yours, but the complete version—the one that can be applied to oneself."
"Not enough."
Rias said: "The value of Kido (Spirit Path) in your world is very low; even a Zanpakutō is merely at the level of being 'interesting'. Furthermore, you don't have the forging method for a Zanpakutō."
The development of a Zanpakutō depends entirely on the individual; even the strongest among them, Ryujin Jakka, is only comparable to a Devil King.
And Rias's Fusion Equation was not that simple; it already involved her path to becoming a Transcendent.
In the places Rias could'see', it was enough to lead her to the Dragon God Level domain.
And going a step further, surpassing the Dragon God Level was not impossible.
This was the ninth of Rias's Equation of Destruction: Destruction True Form!
Essentially, this Formula was an equation that allowed oneself to evolve infinitely.
Mere Kido (Spirit Path) and Zanpakutō were completely incomparable in value to Rias's Fusion Equation.
That was knowledge from an entirely different dimension!
Unohana Retsu: "What do you need?"
"Hmm..." Rias said: "Let me ask a question. Has Aizen betrayed the Soul Society yet?"
"Betrayed..."
Unohana Retsu: "Are you saying that Captain Aizen will betray us in the future?"
So it hasn't happened yet?
Rias: "Second question. Has Shiba Isshin gone missing?"
"He went missing two years ago."
Unohana Retsu was now certain that Rias was determining the timeline on her side.
"Then it's easy to discuss. Both Hōgyokus should have been born by now."
Rias said.
Unohana Retsu: "Hōgyoku?"
"Aizen and Kisuke Urahara both created items called Hōgyoku; both are incomplete products. If the two merge, it can be truly completed."
Rias said: "That is a power capable of breaking the boundaries between Shinigami and Hollows. Its essence is the ability to absorb the hearts of things existing around it and manifest them, and it can protect the host's body to be immortal."
"In short, it's something like a wishing machine, but more inclined towards the spiritual aspect."
"I need to study the principles of the Hōgyoku to perfect my unique evolution system, which is the Fusion Equation."
In the first stage of the Formula, Rias's best masterpiece was Formula Seven: Baryon Destruction Bomb.
A further application was to perform a fusion reaction on the light bombs, thereby pushing her own offensive capabilities to the extreme.
And this still belonged to the first stage of the Fusion Equation.
The gap between a Baryon Destruction Bomb and an ordinary light bomb was merely a matter of control and minor data differences.
The second stage of the Formula required making the Fusion Equation controllable.
Not just controllability of energy—one must know that the Fusion Equation has a chain reaction. If it cannot be fully controlled, once Rias activates it, she can only continuously sacrifice her lifespan.
So it was not yet perfected at this time.
And the third stage of the Fusion Equation was the evolution of the physical body.
Sirzechs became a Transcendent, and his Devils True Form turned into a pure destruction energy body; this was the uniqueness of his own Power of Destruction.
Rias's characteristics were quite a bit worse than Sirzechs's, so she needed a new method.
With this concept, what was created was the Fusion Equation.
In fact, she was close to perfecting the second stage of the Formula. She estimated that within a year or two, she would possess the strength to burst out with Transcendent-level power for a short time.
The third stage corresponds to the second stage, but this time it's not about fusion to form Transcendent-level energy, but about fusing one's own life form!!
Once she completed the third stage of fusion, she would be able to reach the level of the top ten in the world, or even number one!
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