Being able to accomplish this was entirely due to the core Magic Formula of the Flugel obtained through a transaction with Jibril, and the 'core' interference Magic Formula used by the Forest Spirit Race to control high-level life create.
Although it couldn't be fully deciphered, it was still possible to adapt and apply the technique from the wing section.
By overwriting her own life form with the core interference technique, integrating the characteristics of the Flugel and the Power of Destruction, the appearance actually changed according to Rias's will.
These wings not only possessed Destruction Power comparable in quality to that of Transcendents, but also had an extremely high affinity for space.
With this, Rias mastered the special skill of the Flugel, Heavenly Transfer!
It could be said that her current overall combat power was still below that of a Transcendent, yet she already possessed traits that allowed her to fight against one.
It was like leveling up with cheats~
"Can Ajuka's Formula achieve this extent?"
Sirzechs murmured.
"This isn't Brother Ajuka's Formula~"
Rias said quietly, "It combines Brother Sirzechs's Devil's True Form, Brother Ajuka's Kankara Formula... well, along with various knowledge and my own ideas, an independent Formula derived from the Kankara Formula, the Hakai Hōteishiki."
Just a slight lapse in attention, and Rias had actually reached this level?
Although her magic power hadn't reached the point of surpassing demonic limits like Sirzechs's, this talent was simply even more abnormal than Sirzechs and Ajuka!!
Regarding this, Sirzechs couldn't help but become serious and asked, "Little Rias, besides you, who else knows about these characteristics?"
"You two are the only ones who know."
Rias glanced at them and said.
Well, they were the only ones in this world who knew~
After modifying herself, Rias attempted to fight Jibril.
Unfortunately, Jibril's power was stronger than hers, and even more terrifying were her essence, tactics, and experience.
Their battle was practically like child's play; after a hundred exchanges, her fighting style was completely deciphered, and then she was beheaded with a single strike.
This also made Rias understand even more just how reliable the statement that the Flugel were weapons of war truly was.
"Is that so? That's good."
Sirzechs said with a sigh of relief.
Grayfia beside him was the same; the two exchanged a glance, seemingly wanting to say something.
It was too obvious, their thoughts.
Before they could speak, Rias said disinterestedly, "If you're going to tell me to conceal this power that is abnormal for Devils, I refuse."
"Why?"
The first to speak wasn't Sirzechs, but Grayfia.
"This power of yours is far too abnormal. If discovered, you'll be thrust into the spotlight; it's very dangerous."
She said calmly, "You should understand, Lord Sirzechs and I are trying to protect you."
"So what?"
Rias said indifferently, "Unlike the gentle Brother Sirzechs, I walk the path of supremacy."
"While my wings were still unformed was a different matter, but now I have no need to hide myself."
"If someone appears before me as an enemy, I would actually be glad."
Rias smiled and said, "After all, the techniques I create also need testing~"
Rias's power was all-round; she was protected by the Power of Destruction every moment.
She even slept very little now, having basically no obvious shortcomings or weaknesses.
That power, which left assassins unable to find an opening, made warriors fear its might, and drove spellcasters to despair, absolutely did not need to shy away from anyone!!
Grayfia was taken aback and wanted to continue persuading her, but was stopped by Sirzechs.
Gently shaking his head, Sirzechs said, "Forget it. Just as Little Rias says, she has a clear path. We just need to be her support."
"But..."
Grayfia was somewhat anxious.
Sirzechs usually didn't manage affairs and was even henpecked.
But as the true head of the household, once he truly made a decision, she simply couldn't change Sirzechs's will.
"Danger exists all the time~"
Sirzechs smiled and looked at Rias, saying, "While there's no need to deliberately conceal it, Little Rias, can you promise me not to deliberately display this power?"
"At least for now, I have no such intention."
Rias shrugged and said, "At the very least, I need to wait until my Hakai Hōteishiki is perfected~"
"That's good."
Sirzechs nodded.
"By the way."
Sirzechs patted his head and said, "Your sister-in-law and I have finally come back for a visit. How about our whole family getting together?"
How about it?
This was too soft.
Grayfia inwardly complained.
"Mm, then let's get together."
Rias showed a smile, then flew towards them.
"Aren't you going to retract your wings?"
Sirzechs asked.
"It's fine." Rias said, "The wing form is crystalline; the Power of Destruction won't leak. Even if ordinary Devils touch them, nothing will happen. After all, I'm not like Brother Sirzechs, who can't control the Power of Destruction of his Devil's True Form."
Sirzechs gave an awkward laugh and couldn't help but marvel even more at Rias's talent.
It seemed Rias had already carved out her own path.
It was truly hard to imagine just what heights this child would reach in the future.
Arriving at the dining room, Rias familiarly greeted her family members without the slightest shyness.
Seeing that their daughter's social skills and relationship with the family were fine, the couple couldn't help but sigh in relief.
During the meal, Sirzechs made a request for her to look after a child, and Rias agreed.
Most of her time was spent in the Arena with Unohana Retsu and perfecting the Formula; an occasional break wouldn't be bad.
Especially Sona Sitri; Rias held a lot of goodwill for this bespectacled girl who appeared in the original work.
Although only three years old, Devils matured early; it should be interesting.
With such thoughts, Rias felt some anticipation for tomorrow.
Rarely returning to her room, she slept.
The next day—
Serafall brought her younger sister, Sona Sitri, to the Gremory Family~
"Hello, I am Sona Sitri."
Little Sona stood there nervously, small hands clutching her skirt, looking timidly at Rias.
She wasn't wearing glasses. In fact, Sona wasn't nearsighted. Rather, a High-Class Devil having myopia would be the real issue.
The future Sona wore plain lenses to establish her own positioning.
That is, a strategic and tactical-type High-Class Devil.
Although she lacked the 'bespectacled girl' attribute, she was still very cute like this.
Rias couldn't help but think, then responded, "Rias Gremory."
Her crimson long hair fluttered in the wind, and her calm, lake-like eyes revealed an air of serenity.
Her transcendent, profound aura beyond her years, along with her imposing and handsome demeanor, made Sona unable to help but widen her eyes, wanting to better imprint this beautiful scene in her mind.
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