We back BABY!!!

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Rias: "What do we do?"

Y/n: "Just get somewhere safe for now, I'm sure your pawn will come to his senses soon"

Xenovia: "But Asia.."

Y/n: "We need to worry about the ones that are here right now. Everyone, out!!"

The group begins to rush out the room as I stay back and watch what was about to happen.

*BOOST* *BOOST*

Issei: "ASIAAAA!!!"

*BOOST* *BOOST*

Shalba: "Die you foolish dragon!!"

He prepared to fire off an attack but the enraged boy flew at it and destroyed his magic circle with a punch.

Shalba: "Damn you!!!"

Issei threw himself onto the devil brat and began to rip him to shreds, starting with his arm. Before it could continue any further though, Shalba managed to free himself and dodge another attack as a familiar Infinity circle appeared in his palm.

Y/n: "Another one of these mongrels who are using that dragon's power? I need to have a word with her regarding these stupid actions"

I could see something interesting happening as a part of Issei's chest armor opened up to reveal a sphere.

Shalba: "With the power of Ophis, I WILL CERTAINLY ELIMINATE YOU NOW!! DIE BY MY HANDS RED DRAGON EMPEROR!!"

*BOOST* *BOOST* *BOOST*

I could hear the continues build up as I watched with grin on my face.

Y/n: "Jackpot"

Issei: "LONGINUS SMASHER!!"

He fired a beam that completely annihilated the surrounding areas and Shalba.

Shalba: "Curse you Red Dragon!! White Dragon!!"

He turned inti nothingness shortly after as I chuckle to myself.

Y/n: "So that's been taken care of. Now, what to do with you?"

Issei's power wasn't going down after eliminating his opponent and was continuing to grow.

Issei: "AAAAAAHHHH!!!"

He suddenly began to fire shots everywhere as I used Sha Naqba Imuru to dodge every blast of his.

Y/n: "This could pose a problem for everyone if I don't stop him"

*BLAST*

I quickly turn to see the group watching the entire thing go down with protective barriers close by.

Y/n: "DIDN'T I SAY TO GO AWAY!!!"

They could not hear me from having to focus everything on shielding themselves from the attacks.

Y/n: "Dammit!!!.. I need to put an end to this now. Issei, you're going to have to forgive me for this one buddy"

I open Void of Babylon and fire some swords at him which seemingly do nothing but provoke him to turn to me.

Y/n: "Come her little lizard mongrel~ Come and get thus ass whopping from Papa~"

I shoot out sword specifically made for Dragon which seem to hurt and push him back.

Y/n: "BRING IT ON!! THIS WAS THE REMATCH YOU WANTED ALL ALONG AFTER ALL~!!"

Issei: "AAAAAHHH!!!"

He fires a blast at me which I dodge before pulling out Caliburn Mk 2.

Issei: "DIIIIEEE!!"

Another blasts is shot but I cut it in half and rush him with a flurry of attacks.

Y/n: "I'm gonna slap some sense into you and beat the shit out of that form off you"

The sword changes onto a golden sledge hammer that I use to upper cut him with before jumping away as a brinks truck land on him.

Y/n: "FIRE!!"

Sword fling to it and cause it to explode with Issei inside.

Rias: "Y/n!! What are you doing?!"

Y/n: "Saving your pawns life!!! Stay out of it!!"

The door is kicked off as I cut it down to avoid any impact. The truck is then split in half as Issei chucks the flaming truck halfs at me.

Y/n: "Well damn"

I fire a mana burst at the two to make an opening wide enough to evade it.

Ahri: "Behind you master!!!"

I feel a punch to my back as Issei had landed a good attack. I roll across the ground just as Issei had finished preparing his next attack.

Issei: "LONGINUS SMASH-!!"

Y/n: "ALTER!!!"

Black chains shoot out from beneath him and pull the bastard's back enough to fire the blast into the sky.

Y/n: "Counter"

A void from the sky rains down swords that push Issei to the ground as I recover from the punch to my spine.

Y/n: "Did the idiot use his boost power to amplify the hit? If it wasn't for the back plate, I probably would of been out for a bit.. He's smart despite being beserk"

Another blast shoots up into the sky as I hear the sound of chains breaking.

Y/n: "Those aren't Enkidu. They are meant to restrain beasts not divine dragons"

I pull out two swords and begin heading in his direction.

Y/n: "How about round two?!"

I charge in first as Issei follows right after. He blocks the incoming attack and aims to try and rip my arm off but I use Alter to pull his face back while pulling a crowbar to smash it across his face multiple times.

Issei: "RAAAAHH!!!"

He breaks through the chains and grabs my arm as a void appears beside his face. He quickly goes to block it with his free arm but it was all a ruse.

Y/n: "Got ya!!"

I had a golden fire extinguisher in my hands and open it onto the dragons face, annoying it enough to let go of me.

Y/n: "Here you go"

I throw it at him and jump out the way as a flaming sword fires straight at it to force an explosion.

Y/n: "That's not enough"

Surely enough, the damn dragon walks out unharmed to a sight to see.

Y/n: "But this will be fun~"

I had used a lot of mana to open a void the size of a city that began to leak battleships from it.

Kiba: "WHAT THE HECK?!"

Every cannon pointed towards my opponent as over 10,000 battleships stood behind me. I grinned cockily as I watched Issei roar at me.

Y/n: "Would you shut up?"

All weapons fired instantly as the group turned away to not watch the chaos in front of them.

Y/n: "AHAHAHAHAA!!! Go down mongrel!!!"

Unexpectedly, a beam fired from the strike zone that started tearing through my ships.

Y/n: "Just how much more fight is still inside of you?!"

I look up to see Vali had arrived and clench my fist.

Y/n: "So Kuoh is safe enough for him to be here.. Who's with him?"

Rias: "Y/n!!"

Y/n: "THINK OF SOMETHING!! I'LL DISTRACT!!"

Issei immediately closed the distance as I use my Caster's axe to block another attack. I'm sent flying back as I catch myself from stumbling back.

*BOOST* *BOOST*

Y/n: "Here comes another one"

I pull out Balmung and fired up with the infinite mana from the Black Grail.

Issei: "RAAAAAAHHHH!!!"

Y/n: "AAAAAAHHHH!!!"

We both fired our attacks that collide and cause a massive explosion. He flies towards me as I throw the sword away and take out some gauntlets from Babylon.

Y/n: "HYOUDOU!!!"

Issei: "Y/.. NNN!!!"

"He's still within reason!!"

I dodge his claws and land a punch across his face that makes the dragon stumble back.

Y/n: "Enchant. Dragon Slayer EX!! Strength Enhancement EX!!"

We each begin to start trading blows as my Black Grail healed any cuts and wounds that I'd gain.

For each attack he landed, I'd trade it in for a combo of 4 of my own. A strike across the mouth, a jab to the nose, another hit from the side and an uppercut to push him back.

Vali: "I'll take care of things from here"

Y/n: "NOT A CHANCE!!!"

I punch Issei to the ground as I fire missiles at him after jumping back.

Y/n: "I'll handle it"

Vali: "Then why not work together?"

Y/n: "And how exactly?"

Issei slowly lifted himself up and fired another blast that the two of us avoided.

Vali: "I'll divide his power, you focus on hitting him when you can find an opening"

Y/n: "... That sounds like a good plan actually"

Vali: "Get ready. He's about to shoot another one!!"

I pull out Zeus' lightning and disappear out of sight as Vali charges forward, dividing Issei's power while I rampage with blows from the bolt of light across his body.

Vali: "All you"

I fly into the sky with the lightning in hand like a spear.

Y/n: "Olympus falls!!! Spear of The Lightning God!!!"

I chuckle it at the boy and hits him straight through the stomach before being sent back to Babylon.

Issei fell to his knees just as Vali and I land on the ground.

Vali: "All you Rias"

Rias: "Right!!"

"Something's off.."

My Clairvoyance immediately kicked in as he fires a blast that I quickly evade.

Vali: "He wasn't done huh?"

Y/n: "Bastard almost got-"

Ahri: "Mas... ter?"

My soul dropped upon hearing that voice behind me. I slowly began to turn as a part of Ahri's stomach had a hole through it.

Y/n: ".. Ahri?"

Rias: "Oh no.. Issei, what did you do?"

Issei: "AAAAAAAAHHH!!!"

I ignored his yelling as I slowly began to walk over to my Bishop who collapsed into my arms.

Y/n: "Oi, Ahri. Hey, everything's okay. We already recovered Eucliwood, we can go home now after we beat the sense into this idiot"

Ahri: "Really?.. it hurts a lot master"

Her legs began to give up on her as I went to the floor with her.

Y/n: "Ahri, heal yourself.. Heal yourself.. Ahri, heal yourself!!"

Her eyes slowly began to fade out as she mumbled words I couldn't understand.

Y/n: "AHRI!!!"

Vali: "..."

Y/n: "Hey!! We accomplished what we came here for, we can go home now. Wake up!!"

I shook her but her eyes had closed as she mutters something.

Ahri: "Thank you.. for taking care.. of me"

Y/n: "Hey, now's not the time for jokes!!.. EUCLIWOOD!!!"

I sensed another shot fired as I drop a massive sword from the sky to block it.

Y/n: "AaaaAAAAAAAHHHH!!!! No!! I'm not losing someone else!!"

I punch the ground as I think back to what would of happened if I didn't evade the attack.

Y/n: "This is my fault.. GOD DAMMIIIIIT!!!"

I grit my teeth as the uncontrollable Issei continued to rage on behind me. My rage slowly began to subside as I put down Ahri with her head under a scarf I pulled from Babylon.

Rias: "Issei, please recognize me-AH!!"

She was flung back as Vali watched the entire thing go down.

Vali: "Don't kill him"

I drop down behind him with a katana in hand without saying a word.

Kiba: ".. What's Y/n doing?"

Koneko: "He's going to kill Issei!!"

Akeno: "Y/n!! I'm so sorry about what happened to Ahri, but you can't kill him!!"

I go on with my silence as I keep the blade at my side. Issei noticed me and began to once again charge up a powerful blast.

*BOOST* *BOOST* *BOOST* *BOOST*

Y/n: "..."

*BOOST* *BOOST* *BOOST* *BOOST*

The vampire boy tried using his timestop on me but it did not work. At the same time, I noticed Rias looking at me with a depressed gaze.

Rias: "Y/n, I beg you. It was an accident. Don't kill Issei!!"

I put my finger over the guard and push it forward after holding the handle with the other hand.

Issei: "LONGINUS-!!!"

Rias: "Y/N, DON'T!!"

Y/n: "Empyrean.."

Right before the dragon could fire off his attack, I appear behind him, kneeling with the blade already drawn out. I slowly begin to place it back into its sheath before finishing my sentence.

Y/n: "Musashi *Click*"

His armor shatters as the boy is returned with a massive cut across his chest. He falls to his knees as I remain behind Issei without once turning back to him. I glance to my side to see Ophis starring at me and my emotionless face.

Ophis: "So you did it? You killed the Red Dragon Emperor"

Y/n: "..."

Rias: "ISSEI!!!"

ORC: "ISSEI!!/NO!!!"