3rd person pov

Rias: PLEASE DON'T LOSE YOURSELF AGAIN Y/N!!!!!!!!!

Y/n roared shaking everything around them  effecting even Kouh. Y/n charged at Issei alongside Asura before they punched him. When Issei was sent flying billions of miles away Y/n and Asura bolted after; shattering the ground behind them.  When Issei stopped himself Asura charged with a punch causing the Dragon to punch him.

Issei: DIE YOU FILTHY DEMIGOD JUST LIKE YOUR DAMN  DAUGHTER!!!!!

Asura angered even more by this broke through Issei's punch then grabbed him by the face. Asura smashed Issei against the ground over and over again as his roar echoed through the air. Asura was blasted back by Issei before Y/n stomped on Issei's skull.

Y/n: GRRRRAHHHHHHHH!!!!!!!!!!!!!!

Y/n stomped on Issei and with each stomp the ground shattered more causing even Earthquakes. Y/n's fury was beyond anything he or his Hollow  ever felt. It didn't matter what got in his way. The truth was he would never stop until Issei and everyone who harmed his Rias and the others was killed. Y/n grabbed  Issei by his neck before throwing him into the sky.

Issei: YOU THINK YOUR STRONGER THAN ME?! HAHA YOUR NOTHING BUT ANOTHER Y/N I'LL FUCKING KILL!! WHEN I'M DONE   I'LL BREAK ALL OF YOUR GIRLS NICE AND SLOWLY UNTIL THEY WILL NEVER REMEMBER YOUR DAMN FACE!!!

Y/n:Kill....them.....all......must.....protect...Girls.....Grrrrrr.

Issei's body surrounded in energy as he boosted his power before charging up a blast.

Issei: LET'S SEE YOUR ASS PROTECT YOURSELF FROM THIS SHADOW DRAGON SHOT!!

When Issei fired the blast Y/n unleashed a  Cero to overpower Issei's attack. As Y/n's energy consumed the sky Rias and the other's watched in disbelief. Terror had begun to take over as they feared what would happened the world. The world could shatter in the mist of Y/n and Asura's wrath. 

Rias: NO THIS CAN'T BE HAPPENING AGAIN! WE HAVE TO STOP THIS!

Mithra who was barely clinging to life with Gasper tried to stand up.

Asia: Y-Your alive!

Mithra; It's too late to stop them. When my father is like this no one can stop him.

Rukia: This is it.. all we can do is  stop what we can here.

???: Looks like for now your all ours.~

Rias and the others turned around seeing more of Issei's peerage standing ready to fight.

Rukia: We  let you  Issei have his way you scum.

Alter Akeno: Oh those words are pretty cute but we'll see if you can them up; When your screaming in pain~

Akeno and her Alter fired bolts at each other countering each other out  As dust formed Rukia charged at her Hollow before unleashing a blast of ice.

Rukia: HAKUREN! 

The Hollow Rukia blocked with a attack of her own until  Ichigo appeared behind her.  After unleashing a Getsuga Tenshou Ichigo  jumped beside Rukia.

Ichigo: We've got to kill these guys and quick.

Renji: Yeah but these bastards are tougher than we thought.

???: So this is how Issei intends to fight? I could of  sworn our master gave us orders to annihilate them. 

???2: Heh he always  was a joke if you ask me.

??? 3: He'll be punished for his actions I guarantee it.

Sajin: B-But that voice...it can't be!

Sajin: KANAME WHAT HAVE THEY DONE TO YOU?!

Kaname: Sajin..I'm not surprised you exist in this world aswell.

Alter Akeno: What are you three  doing here? I thought us and Issei were to handle them?

Ulquiorra (Beyond):  Since you can no longer handle this alone we shall be taking over.

Hollow Yoruichi: We've barely begun to fight! What makes you think we aren-

The male  Grimmjow cut her off by slashing her in two before speaking.

Grimmjow (Beyond): Your all too weak now stand out of my way.

Alter Rossweisse: HOW DARE YOU SCUM!

The man smirked before wiping out the rest of the peerage with ease. After he did  Harribel and the other Arrancars  arrived.

Haribel: What is this power they posses? It's too monstrous to be that one of our own.

Grimmjow: Who's that Bastard and why is his spirit energy share similarities to mine?!

Grimmjow (Beyond): Heh so your the me of this world? I'll enjoy tearing you apart!

Ulquiorra: We can't allow them to survive Lady Harribel..There is only one thing to do.

Nelliel: *nods* We all need to kill them with everything we have.

Apache: Then let's show these bastards who they are messing with!

Sun sun: For once I agree with you.

Mila:  Let's do this!

The three smirked before removing their arms then a giant began to appear.

Apache/Mila/Sun sun: GO AYON ! 

As the three charged with Ayon Grimmjow charged at her counterpart with a punch. The Male Grimmjow smirked before grabbing it and punched her back. Ichigo used flashstep to get behind him then went to slash him. While Beyond Grimmjow blocked it he was hit by the Arrancars. Ulquiorra 's body surrounded in green energy before she entered a new form and stood with Harribel against her own counterpart.

Ulquiorra: Segunda Etpa....Let us see how much your can stand up to us.

Harribel unleashed a wave of water at the male who blocked it with one of his wings. Ulquiorra used Sonido to get behind him before firing a Cero. When the Cero faded The Beyond  knocked her away with his tail. As the pale girl stopped herself She watched her counterpart go to fire  a cero. Left unable to stop it she was suddenly saved by Isshin who appeared in the nick of time. As Ryuken and Kisuke knocked him away Izzy flew into the air and punched him.

Isshin: That was way too close. 

Ryuken: To think I would have to fight by your side again Isshin.

Kisuke: Listen  gentlemen let's save the chitchat for after saving the world yeah?

Ulquiorra: You believe you all have a chance against us?

Kisuke: Well maybe not alone but we've got more numbers than you'd think.

As he said that the other Devils arrived alongside the other factions.

Sirzechs: I never thought things would get this intense.

Micheal: This battle is greater than the war we faced during the time of God.

Azazel: That's true but this time we aren't the only ones fighting.

Odin: I already have my men tending to the injured as we speak.

Sairaorg: I did the same with my peerage.

Riser: Riser aswell that's leaves the fighting for all of us.

???: That is good to hear All of this noise is far too much for me.

The others turned seeing a face they never expected.

Sirzechs: So this is serious enough to get you involved Ophis and even Great Red?!

Ophis: We can't allow these monsters to wipe out this world. So long as the Great Divide is no longer mine I will fight.

Gasper tried to freeze the Beyond Grimmjow only for him to break free. As he went to attack Gasper Kenpachi stood  infront and blocked it. 

Kenpachi: COME ON AND FIGHT ME GIVE ME EVERYTHING YOU'VE GOT BEFORE YOU DIE!

Kenpachi sent the beyond back  before he rushed at him with another slash. The Grimmjow went to fire a cero only to paralyzed by a kido spell from Isane and Nanao. Kenpachi slashed the Beyond causing him to roar; breaking free. Grimmjow charged at her counterpart with a kick to the jaw then smirked.

Grimmjow: HA NEVER FORGET ABOUT ME YOU BASTARD!

As the Beyond Grimmjow went back a bit the Girl unleashed a barrage of Desgarron. While that happened Izzy and Rias  unleashed a hale storm of blasts at the Beyond Ulquiorra who  blocked it.  Kaname went to attack them but was stopped by Sajin who clenched his fist.

Sajin: I'm sorry my friend.. I failed to save you once but this time I will. I'll set you free from this life of torment once and for all.

Kaname: Then try.... let us end this battle between us once and for all.

Irina: Captain Sajin!

Kaname  surrounded them in a dark cocoon sealing them and a small group inside.

Sajin: Why  did you do this to yourselves now your stuck in this fight until death.

Ichigo: Your not dealing with this fight alone. Even if your honor is on the line it's not right for you to kill someone dear with your own hands.

Irina: We are all fighting for the world it's not right if you die alone like this.

Sajin; You know you may not survive this battle correct?

Ichigo:  I didn't plan on going down without swinging.

Ginjo:*Smirks* I already did before what is once more gonna  do? Besides Y/n is fighting for the world so why shouldn't we? I respect the kid as a man and a friend.

Sajin stood silent before he smiled slightly. Raising his blade his face filled with determination as he ran at Kaname with the others.

Sajin: LET'S END THIS FIGHT FOR THE SAKE OF THE WORLD!!!

One of the Soul Reapers went behind Kaname before using his shikai.

Yumichika: Bloom Ruri'iro Kujaku!

As Vines surrounded Kaname His energy began to fade. Knowing what was happening the beyond slashed through  it allowing  Irina to blast him. Mithra who stood fare away helped whoever she could escape.  Looking into the distance she remembered her fathers sacrifice to save her. 

Mithra: Father

Asura the Demigod of Wrath allowed himself to  be erased from existence; For the sake of his own daughter. He saved the world from the darkness of the god of Creation: Chakravartin. His rage was unleashed and he lost many comrades and his own wife. Mithra was all he had and he was all she had. Her cries were his pain and even now they remained such. Mithra got on her knees then as tears fell from her eyes. Her hands went together as she prayed; Prayed her father would hear her words.

https://youtu.be/8iWVfNvAsAU

Mithra:Father....you've given up so much for me. all of your pain meant nothing to you compared to my own sadness. When I thought you were gone I..I was heartbroken., but your return brought me so much joy. Uncle Yasha..my mother, and the seven deities, you lost them all.I can't stand the thought of losing you again. P-Please if you can hear me. I 'm begging you...PLEASE WIN FATHER!!!!!!!!

Y/n and Asura grabbed hold of Issei before the three glared at each other.  The three growled at each other before they bursted into the  sky  shattering the ground beneath. As they went into the sky  the others saw this before screaming out to Y/n. While they flew into the air Asura punched Issei into the  moon causing Y/n to fly after him. Issei stood up before Y/n  slashed down with a  swing of his blade. Issei blocked it causing the ground to crack as Issei pushed back Y/n. Asura ran at Issei before grabbed the dragon's fist. Asura roared as he punched Issei in the face. As Issei was sent flying Y/n used Sonido to stop him. Having grabbed Issei Y/n slammed him into the ground.

Issei: YOU SON OF A BITCH!!!!

Y/n formed a cero as stood on Issei then fired it pointblank.

Y/n: WILL...PROTECT....THEM ...ALL!!

As the moon began to shake everyone stared in utter disbelief as the moon began to shatter.

Yamamoto: HAS THIS BECOME THE HEIGHTS Y/N HAS REACHED?!

Ophis: I see that boy is far stronger than everyone here.;they just don't know it yet. Y/n L/n... his desire to protect has allowed him to reach beyond the gods.

Ophis felt her heart skip a beat before she look with surprise. Meanwhile in space Y/n  flew at Issei who blasted him away as he entered his his true Juggernaut drive. Asura tried to attack once more was punched back;cracking his face.

Issei: YOU BASTARD WHAT THE HELL ARE YOU?!

As Y/n returned to normal with Asura he glared back at Issei.

Y/n: I'm the one who stands as  a true savior; slashing down even Gods. My power was born for  one purpose and one alone. 

Y/n unleashed a Mugetsu and then stood in  it's form as he sent Issei flying.

Y/n: TO PROTECT THOSE WHO CAN'T FROM EVIL  BASTARDS LIKE YOU!! THE DESIRE BURNING IN MY HEART  GUIDES MY BLADE, LETTING ME SLASH DOWN ALL WHO STAND BEFORE ME!!! THAT'S WHO I AM A PROTECTOR.THAT'S WHAT I AM DOWN TO  MY  SOUL AND THAT'S WHY I'LL SHOW YOU THE FULL POWER OF MY BRAVE SOUL!!!!!!!!

Y/n  slashed Issei cutting through his armor causing him to scream out. Asura flew at Issei as his body surrounded in a golden light. When Asura punched  Issei he crashed through another planet when Y/n added to the attack.  

Asura: I WILL NEVER FORGIVE YOU FOR HURTING MY DAUGHTER  MITHRA!!!!!!!!! I'LL MAKE YOU SUFFER EVER ONCE OF MY WRATH!!!!!

As Issei blasted off the planet he was overwhelmed by the combined attacks of  Y/n and Asura leaving not even atoms left. Suddenly Harribel and Nelliel felt something inside them begin to change.  As a newfound energy bursted out of them they  flew into space as if by instinct. When they did they stood in new forms as space shattered open.

Harribel: This power your the one who gave it to us wasn't it?

A being walked out Causing the four people to stand on ready to fight.

Nelliel: We bow to no one anymore  not even you. You may have given us both life and new power; but you'll die for underestimating us.

Aizen.

Aizen (Beyond); Damn you.... This wasn't how things were supposed to be. It's all his fault.. Even dying in this world wasn't enough to end him!

Y/n: Your plans are over....we're ending things here and now.

???: Well said Y/n...I guess my belief in you held true. 

Aizen (Beyond): YOUR ALL GOING TO DIE HERE IT DOESN'T MATTER IF YOU HELP THEM OR NOT!

GIN !

Gin: I've been fighting all this time to escape your world Aizen. You made a great mistake granting me the same power as the others. This time I'll end you and make sure Rangiku and everyone else is safe. How does it feel Aizen? How does it feel knowing it's your turn to die?

To be continued