Ultimate Highschool DxD

Issei went into secluded meditation to concentrate on his powers. He set a barrier around himself so that no one would detect his presence and because his power might cause distortion in the surrounding space. Issei closed his eyes and transformed into his true form. His skin turned so white, that it was nearly translucent. His eyes changed into Sapphire blue and his hair became bloody crimson. He still had the same hairstyle with long bangs in the sides and front with two locks behind the head. Now, Issei Hyoudou had become Aerus Gremory.

He unveiled his bat like devil wings. He had seven pairs of wings. Even transcendental beings (aka super devils) have only six pairs of wings. The only devil who ever had seven pairs of wings was the original Lucifer. But not many people know this. Because it's widely misunderstood that Sirzechs is stronger than the original Lucifer, but that's nothing more than a rumor. Sirzechs is in the upper echelons of the ten strongest beings in the world, but even he has only six pairs of wings. That means that Aerus is stronger than Sirzechs.

Issei shoved off the useless thoughts and unleashed his demonic power. A crimson aura covered his entire body while trying to spread in all directions. The barrier stopped it, the barrier started decaying from just his aura. That is ow strong the Demonic Power of Extinction is. Aerus quickly forged the barrier with his demonic power, so now it can only be broken if he wills it. He circulates the whole power within his body and also surrounded himself with it.

With the Power of Extinction the Original Gremory could've defeated the Original Lucifer and the other satans and he could've become the sole ruler of the underworld. But even though the Original Gremory possessed this power, he never dared use it. Because this demonic power would've immediately destroyed him. Using this power would be the same as self destruction. This power is too deadly as it can even destroy the soul. But Aerus can unleash it with no issues whatsoever.

The amount of power Aerus now emitted would be strong enough to go toe to toe with either Ddraig or Albion and it hasn't even been mastered to it's true potential. Aerus noticed something, an obstacle. He discovered that his other demonic powers have unusual seals placed on them. He tried to use the Power of Extinction to destroy the seals, but nothing happened. He later found out that the seals are also made of his own Power of Extinction. That's why it remains unfazed. He finds out that to break the seals a catalyst is required. But what might that be? He needs to unlock his other demonic powers, especially the Demonic Power of the Pheonex. Aerus's Demonic Powers have the exact same trait as the original devils of the Underworld.

The tears of the Original Pheonex were capable enough to heal absolutely anything. Aerus's Demonic Power of Pheonex has the same traits ad that of the Original Pheonex and Aerus's Demonic Power should be even stronger and capable than the Original Pheonex's. He can use his Pheonex powers to save his mother's and sisters. He tried to figure what the catalyst could be, but failed again and again. So, he let it be for now.

He instead concentrated on his Power of Extinction to comprehend it even better. After finishing his concentration, he finally opened his eyes. But what he saw almost gave him a heart attack and brain stroke at the same time. The Ouroboros Dragon Ophis was sitting on his l.a.p with her arms and legs wrapped around him while looking him in the eyes.

(POV Change)

"Umm....why are you sitting on my lap?"

"I want your help to beat Baka Red."

She said with her usual emotionless gaze. I sighed at her words. I knew this was coming, but not so soon. Damn! Why Ophis?!! Out of all the peope in the entire world, why her?! No, I should calm down. Ophis has seen me in my real form, I need her to not speak about it to others.

"Ophis why do you want to defeat the Great Red?"

"Because I want silence and he is causing noise in my home. But I'm not strong enough to beat him by myself."

"You're doing this just for silence? What of I an give you something even better?"

"Is there something better than silence?"

"Of course there is. The thing better than silence is a family. Just give it one chance.."

"Alright."

"My name is Aerus, but I want you to call me Issei when there're other people around. When both of us are alone, you can call me Aerus. "

"Ok."

Then I got up and reverted back to Issei. I removed the barrier. It's already been two weeks. It's time for a of us to go to the Youth Gathering. I introduce everyone to Ophis. They all were a bit scared of her, but that's natural. But they accepted her as a family regardless. Everyone has progressed significantly in their training. I had a spar with each of them and their development was satisfying.

(POV Change)

After congratulating everyone regarding their progress, Issei along with everyone had lunch. Then Issei summoned a teleportation circle and all of them teleported to the Gremory palace. There he introduced everyone to Ophis and a of them were shocked out their wits. When having dinner, Issei noticed that Venelena was again and again looking at him. It seems that she was attracted to him. Tonight Lord Gremory was not present at the palace. Issei decided to give Venelena the ride of her life later tonight. Aerus always had taboo feelings regarding his aunt. Time to fulfill them. Thinking about it a demonic grin flashed across Issei's face. He wanted to have i.n.c.e.s.t since the moment he was born and me his d.e.s.i.r.es are on the path of becoming true. He was gonna have some fun with his Aunt Venelena.