'The Diodora Rebellion'.
That became the official designation for the series of incidents triggered by the betrayal of Diodora Astaroth.
And so, Diodora secured his place in the Underworld's history. In an extremely dishonorable manner, one that the man himself would certainly not celebrate.
To report on the incident, Kazuki had gone with Rias, Akeno, and Artoria to the Demon King's palace in the demon realm.
In the room, before Sirzechs, Azazel, and the others—including Serafall, Ajuka, and Michael connected via monitor, they reported everything they had witnessed.
"I see... I've put you all through a terrible ordeal. Thank you for your hard work. You may step back and rest now."
"Yes!"
Having finished their report, they left the room and opened a magic circle to return to the Gremory estate.
"Good grief... In the end, we've dumped another mess on their shoulders," Azazel muttered, scratching his head roughly and letting out a sigh.
"Sirzechs-chan, are you alright?"
"Alright? Do I look like I have a problem? I'm fine, perfectly normal, hehe..."
'The hell you are!' Azazel thought. A dense, crimson aura was visibly leaking from Sirzechs, crackling and sparking! It was terrifying just being next to him!
"Calm down, Sirzechs. I get it, your precious little sister was nearly raped. It's understandable to be angry, but try to cool your head a little. Luckily—if you can call it that—the bastards who tried to lay hands on Rias and the others all turned into demonic beasts and were taken care of by Rias's group themselves. So it all worked out, right?"
"...Worked out? What are you talking about, Azazel?! Those worthless nobles, cocksuckers, who have nothing to boast about but their bloodlines, dared to try and touch my Ria-chan!? I won't be satisfied until I send them to hell and erase their souls completely!!"
"O-oh..."
'Shit!? I underestimated this guy's siscon levels! In this state, he might seriously go through with it!?'
"Wait, Sirzechs-chan."
At that moment, Serafall called for a halt. 'Oh, good! Even though she usually acts silly, she is a Demon King in charge of diplomacy after all. She must know causing trouble with Hades, the King of the Netherworld, would be bad! Come on, Serafall, stop him!'
"If you're going, I'm going too!!"
But Azazel's expectations were utterly betrayed.
'Whoa there!? What the hell are you saying!?'
"Rias-chan is like a little sister to me, too. And just thinking about what would have happened if Sona-chan had gone through something like that... I understand Sirzechs-chan's feelings painfully well!!"
"You understand, don't you, Serafall!!"
"Of course, Sirzechs-chan. After all, we're fellow siscon friends, right!?"
"Yes! Then let us go, my fellow siscon friend!!"
"DON'T YOU DARE GO——————!!"
THWACK!
A massive hammer marked "100t" slammed into the backs of the rampaging Sirzechs and Serafall's heads, silencing them both.
"My apologies. My fool of a husband has caused a disturbance."
"Please continue the meeting, ignoring my idiotic sister."
Grayfia and Sona bowed their heads deeply after physically silencing the two. 'The strongest beings in the Underworld might just be these women...'
"This state of Sirzechs and Serafall is also Diodora's doing... He really went and did something incredibly foolish," Ajuka sighed. He was another victim in this affair.
His family's failure was being criticized, and it seemed to have caused him a lot of trouble. The only reason he wasn't forced to abdicate was probably that if such talk arose, he would gleefully step down. He was a typical technophile with not a shred of interest in the title of Demon King.
"We are investigating which idiot nobles from which houses participated in the assault. Once identified, a great purge will commence."
"Not a bad thing to air things out. That stale, outdated noble-ism has no place in the world today."
"I agree. Until now, Sirzechs and the others have held back because they lacked a justifiable cause. This time, there is a clear crime of aiding terrorists from the Khaos Brigade, so there should be no issues."
Michael agreed with Azazel's opinion. Having had his peace proposals shot down repeatedly by the old noble factions, he probably had his own grievances.
"Anyway... Rias's peerage—or rather, Kazuki's peerage—is something else," Azazel said, changing the subject.
"We heard the report. Issei-kun and Asia have achieved their Balance Breakers. And it seems Kazuki-kun himself has also shown his Forbidden Technique."
"Yeah. Each one is an insane power."
Issei's [Boosted Gear Scale Mail] had manifested incompletely before, but the complete version was different, with stable power output. Being able to instantly draw out abilities like [Boost] and [Transfer] was practically cheating.
Even more cheat-level was Asia's [Twilight Saint Affection — The Dragon Saint's Offered Light of Mercy]. It could heal fatal wounds, regenerate lost body parts—something previously impossible—and even restore magical power and stamina; a complete recovery ability. It still needed verification, but just the abilities shown this time would be coveted by any faction.
And then there was Kazuki's [Gigantic Guyver]. In terms of raw power output alone, it surpassed Issei's. It was truly an irregular existence, capable of high-level gravity control and even interdimensional movement.
When combined with Kazuki's martial arts, even the powered-up, Maou-class Shalba Beelzebub was effortlessly defeated.
All three of them possessed monstrous abilities.
"Truly fascinating. I would very much like to study all three of them, but..."
"If you tried that, you'd end up fighting Sirzechs. I'm restraining myself to observation, too. I'll send you the data, so be patient."
The three were part of Rias's peerage, meaning they were under Sirzechs's protection. Even Ajuka couldn't act recklessly.
Well, Azazel was in the same boat...
"What concerns me more is something else. Kazuki-kun's Queen, Artoria. Her true identity being that King Arthur..."
'Ah, right, that too...'
When Artoria, Kazuki's Queen, destroyed the barrier-generating device, she used a holy sword that shone with golden light. Upon receiving this report and questioning Artoria, she readily admitted,
"Yes, my name is Artoria Pendragon. I am the one who once pulled the Sword of Selection and ascended to the throne of Britain."
Artoria was the feminine form of Arthur, so they had their suspicions, but... just how the hell did Kazuki manage to make such a legendary figure his servant?
"The Excalibur preserved in Heaven is merely a replica created through alchemy from the fragments. It is incomparable to the genuine article she possesses."
Of the seven original Excaliburs, four merged into one during the 'Holy Sword Incident,' and are stored in Heaven along with the one Xenovia used and the one preserved by the Orthodox Church. The whereabouts of the final one remain unknown.
"In any case, their combat strength is excessive for rookies who haven't even officially debuted. But the people of the Underworld are finding hope in their battle. With the Khaos Brigade likely to target them from now on, what should we do...?"
"Let us think about it. What we can do for those children..."
Suddenly, Sirzechs and Serafall revived and said this with complete seriousness.
Well, they had a point. Maybe Azazel should also put more effort than ever into coaching them.
Next lemons...
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