<div>
<div>
The next day, I brought Rias and the others to an isolated training ground. To ensure uninterrupted training, they had all taken a leave of absence from school. Since Rias was the territorial Devil of Kuoh Town, such arrangements were easily made.
<div>
<div>
"Kyoya, how are we going to train? Do you have a plan?" Rias asked curiously.
<div>
<div>
As soon as Rias asked the question, everyone looked at me with anticipation. After all, I had promised to significantly increase their power within a week.
<div>
<div>
Devils had long lifespans, so their power grew incredibly slowly. Issei Hyoudou, the protagonist of the original story, had to sacrifice his own lifespan to drastically increase his power in a relatively short amount of time. This showed just how difficult it was for Devils to increase their power.
<div>
<div>
If anyone else had made such a claim, they would have dismissed it as impossible. But knowing my personality and past accomplishments, they unconditionally trusted me. Otherwise, they would have been far more skeptical.
<div>
<div>
...
<div>
<div>
"Before we start training, I''d like to have a little spar with Rias," I announced.
<div>
<div>
"What? With me? Why?" Rias asked, confused.
<div>
<div>
The others were also puzzled, not understanding my intentions.
<div>
<div>
"Don''t worry about it, Rias. Think of it as me getting a feel for your current strength. Hit me with your strongest attack. Don''t worry about hurting me." I requested.
<div>
<div>
"Alright, if that''s what you want, Kyoya. Here I come." Rias warned.
<div>
<div>
Rias activated her [Power of Destruction], a crimson aura emanating from her. She spread her Devil wings and unleashed a powerful blast of destructive energy towards me.
<div>
<div>
Boom!
<div>
<div>
A loud explosion echoed, and a cloud of dust and debris filled the air. When it cleared, a giant skeletal figure was revealed—[Susanoo].
<div>
<div>
Rias''s destructive blast hadn''t even scratched it!
<div>
<div>
Everyone was stunned to see that I was completely unharmed, not even a hair out of place.
<div>
<div>
After all, this was the Gremory family''s signature [Power of Destruction], yet it hadn''t even made a dent. It was hard to fathom just how strong I really was.
<div>
<div>
"I concede defeat, Kyoya. You''re way too strong. It''s insane!" Rias said, feeling a little dejected.
Stolen content warning: this content belongs on Royal Road. Report any occurrences.
<div>
<div>
[Ding! Task completed! Host received a Red Grade gift bag! Opening the gift bag. Congratulations, Host, for obtaining the Magic Power and Physique Enhancement Card.]
<div>
<div>
Just as Rias admitted defeat, the system notification for task completion rang in my mind. That''s right, I had used this mock battle to complete the Red Grade task that I had gotten from Rias long ago.
<div>
<div>
"Kyoya, you''re such a bully. You were this strong, but you still made Tomoe-san and Kiba fight you." Akeno pouted playfully.
<div>
<div>
Kiba just smiled wryly and didn''t say anything, though he did look at me with a hint of exasperation.
<div>
<div>
"Hey, don''t misunderstand. I wasn''t this strong back then. Don''t get the wrong idea!" I said, feeling a shiver run down my spine at Kiba''s gaze.
<div>
<div>
"!!!!"
<div>
<div>
"Kyoya, are you saying you reached this level of power in such a short amount of time?" Everyone was shocked.
<div>
<div>
"Of course. Otherwise, how could I promise to increase your powers? Now do you believe me?" I said, a confident smirk on my face.
<div>
<div>
"If that''s the case, then I''m even more excited about the training." Akeno''s smile grew wider.
<div>
<div>
"Agreed! Please train us rigorously, Kyoya-senpai!" Koneko''s eyes sparkled with excitement.
<div>
<div>
"No problem. Let''s start by addressing Rias''s bottleneck." I looked at Rias.
<div>
<div>
"Rias, your biggest problem is your lack of magic power. You can''t sustain high-intensity battles for long. Your [Power of Destruction], in terms of pure destructive force, is nearly unmatched among Devil clans in the Underworld."
<div>
<div>
"But your mastery of it is still insufficient. That''s something you need to work on yourself, and I can''t help you there. But I can help you with your magic power problem."
<div>
<div>
"Hmm... mastering the [Power of Destruction] isn''t easy. Even Onii-sama struggled with it. It''s impossible for me to make significant progress in just one week." Rias sighed, a little discouraged.
<div>
<div>
"You''re wrong about that, Rias. Your brother is hiding his true strength. He may be a Maou, but his power has reached the level of a Transcendent/Super Devil. His mastery of the [Power of Destruction] far surpasses that of the previous Four Great Satans." I said with a grin.
<div>
<div>
...
<div>
<div>
Sirzechs inherited the [Power of Destruction] from his mother''s side, the House of Bael. He could compress his [Power of Destruction] into incredibly powerful spheres and control them freely.
<div>
<div>
Currently, he holds the title of Lucifer, one of the Four Great Satans.
<div>
<div>
He was one of only three Devils who had transcended beyond the level of a Maou (the other two being Ajuka Beelzebub and the leader of the Khaos Brigade, Rizevim Livan Lucifer).
<div>
<div>
In fact, Sirzechs had even unleashed his true form, which terrorized even the God of the Underworld, Hades.
<div>
<div>
...
<div>
<div>
But Rias, at her current level, had almost no chance of reaching that level. But with me around, reaching that level would be smooth.
<div>
<div>
"Transcendent? Kyoya, what''s a Transcendent?" Everyone was confused by the term. They had never heard of it before.
<div>
<div>
"Well, it''s not surprising that you don''t know. I''ll explain. A Transcendent is someone whose power surpasses the Maou-class level. There are currently only three such Devils. Other examples include the Thunder God Thor, Shiva, and Zeus. They''re all Transcendents."
<div>
<div>
Everyone was stunned. They hadn''t realized that there was a power level above Maou-class!
<div>
<div>
And they were even more shocked to learn that Sirzechs was hiding such power. Even Rias was stunned to learn of her brother''s true strength.
<div>
<div>
After all, the beings mentioned were all renowned gods from various mythologies! God of Destruction Shiva, the Thunder God of Norse mythology, and so on.
<div>
<div>
It was no wonder they were shocked!