Everyone we're in the ORC waiting for Grayfia to arrive. The door creek opens revealing Sona who looked at Issei with her heart clench and tears run down her face. Issei immediately suspects that Irene had been busy running around restoring people's memory close to him.
Tsubaki also had her memory restored joining the reunion with her lover. They question how they could return back in time but he refused to answer which Sona didn't pursue more. She knew Issei would have reason to hide it from them and trust that he'll eventually will.
Issei knew he couldn't hide the truth specially from Sona who far outclass him in analytics thinking and only able to defeat her in chest because of his innate luck.
He bonded with them for a bit, they seem too lax but each and everyone had he power to be considered Ultimate class. Issei taught them tier magic which they only able to cast to 7th tier which is still powerful in their worlds standard.
Rias and Akeno were D ranked Ultimate class while Koneko and Yuumi E-ranked. Asia is the weakest and only at S-ranked High-class devil due being only support type.
Sona amazed from their increase in power but she didn't that her power was rapidly increasing due to her fragmented soul fusing with the current one. This is the reason why the ORC rapid growth.
Few minutes had passed and the teleportation circle emerged then Grayfia arrived only to be baffled from the insane growth her mistress and peerage manage to reach. She was an E-ranked superclass devil yet her mistress manages to become this strong.
However, she calmed down due to knowing Issei came from the future to help theme. Grayfia was grateful that her mistress had gained a mature air around her though it was due to regaining her memories.
She almost pities raiser for accepting the match, the keyword 'Almost'. Regaining her senses, Grayfia send them to the battle area and announce herself as being one of the judges.
"She seem to grow stronger huh? Is it because of that boy, Issei?"
From behind Grayfia came out Sirzech who decided to watch the match to better observe her little sister. He was surprised as his queen seeing Rias reach a higher power. She radiates maturity, unlike her usual self.
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Inside the artificial dimension, they began to quickly act since planning was redundant as having previous is truly convenient. Splitting up to fight their opponent they able to quickly dispatch the pawns inside the gym.
Akeno fought raiser queen making sure to enjoy herself in tort-I mean fighting her. Issei saw her sadistic smile and instantly knew what's going to happened.
He then went along with Yuumi where Ravel and the raiser knights were presents. He smiled due to Ravel's insult and tsundere tendency which causes him to feel nostalgic.
"Why are you smiling? Just because you able to dispatch we don't mean you already won!!"
"Ah no I was just thinking your we're quite cute especially your hair."
He complimented that cause the latter to blush from the remark. She was mad for being flustered and order her teammates to attack but it was a poor move as Issei stood. Issei blink for a split-seconds then appeared in front of Ravel who was shocked to see how fast Issei was.
"What!? How di-Gaah!"
Issei flick her on the forehead while smiling then use magic to distort the space along with illusion magic to ensure no one would watch what his going to do and grab a ring causing travel to panic front eh action.
"Hey!? What are you doing!? Don't touch you slowly devil!"
"Wait hold on! You would understand once you put this."
Ravel violently tried to escape Issei but somehow her body refused to move. However, it was not in fear but rather another emotion as if something would return to her and upon slipping the ring in her fingers cause countless memories flooding in.
Issei took a whole five days to create every ring making sure it adds enchantment and spell in restoring memories. It made it easier for his lover to regain their memories
He also increases his precision and control over the energy output he uses meaning less wasted power. Ravel's eyes shimmer as she quickly hugged Issei tightly beaming with a smile. Both silently enjoyed their reunion afterward told her that she needs to be out of the game.
She accepted then remove her from the game along with the rest of her defeated teammates. Issei continue to smile as he heard raiser knight being defeated by Yuumi then congratulate her.
"I still want that reward Issei."
"Ah yeah after we finish fighting."
Yuumi lick her lips causing Issei to shiver since she one of the most perverted lovers. Afterward, Issei saw raiser being blown away by Rias.
The fried chicken was horrified from seeing how her own Fiancée was able to easily ddefeat him. He couldn't accept that someone was put in such a shameful state.
"Rias don't you have any ideas if you won!?"
"I well aware of my action and the future it will hold. However, I know that being with you is worthless."
"You shameful bitch!! I own you!!"
Raiser couldn't comprehend the reality denying it with all his being. He felt an absurd desire to destroy the one that cause him shame.
'Hahaha this body will suffice.'
From that an explosion of energy consumes the dimension sending Rias flying through the air but was caught by Issei who had serious expressions tainted on his faces..
'Hmph I didn't anticipate for them to posses him. Thankfully, it's only raiser and not someone important.'
Even in the Phenex family, Raiser was big disappointed and the only defining quality is his being the eldest heir. Issei didn't want to kill him but it won't cause him much problem if he did.
"Rias go with the others and don't interfere."
From the spectators they quickly senses the rapid increase of power from Raiser causing Sirzech quickly teleported to his little sister along with Grayfia. They felt danger coming from Phenex who's body was changing in an abomination.
"Grayfia take Rias and her peerage. We'll handle this."
Grayfia obliged teleportation the ORC who was hesitant to leave Issei but gave them reassuring smile as he brought out his sacred gear. Meanwhile, Sirzech was powering using his power of destruction.
He felt the impending doom that if he were to loose then everything would be meaningless.
"Do you have a clue what's going happening?"
"Yes, the one I told that they are dangerous enemy lurking and his one of them. Sorry Sirzech but you should sit this one out."
Issei used manage to forcibly teleport back Sirzech who was stunned before he could even react. Afterward, he quickly places a powerful dimensional lack to ensure it won't escape.
"Hahaha finally a suitable vessel with it's chaotic mind. Oh I love to torture this soul."
Raiser body was no more only a mass of disfigured and mangled creatures could be seen. It was grotesque being with countless tiny arms that form in wings and leathery face that had countless eyes. A book at hand floats beside it grinning to it's countless mouths.
"It is pleasure to see once again, Crimson Satanael."
"The opposite could be said for me, Shorgtha."
Shorgtha, one of the twelve apostle that directly communicates with the outer gods. They contain the flesh of this abomination that allowed them to virtually undying creature that Issei had difficult fighting.
"I would have interrogate you but…"
He vanish then reappeared creating countless needle likneedle-likees made from Power of Destruction. Issei was blocking any spectator that would erode from seeing the outer gods' appearances.
It shredded the body of his opponent to countless pieces leaving nothing behind but the book that accompanies it continues to hover as Issei evaded fleshly musky tendrils.
Issei took a distance away while blasting countless PoD attacks. He then surrounded his body with it causing the tendrils to be obliterated upon contact.
"As Expected of the one only who had tried to fight our God. It a shame that you live in such a small world wishing to live in mundane life that makes me vomit."
It regenerating itself back from existence. The reason they are difficult to kill is that they bypass the laws of the world and create their own. Though Issei was the only one capable of killing them.
"Law and order? How disgusting that a thing exist when there are numerous worlds like the grain of sands on a desert. Why destroying one would change a thing? Fufuhahaha tell me Crimson Satanael why struggle??"