3rd person pov

Y/n  blitzed towards towards his World Breaker counterpart causing their clash to consume the sky in energy. The World Breaker  dodged Y/n's slashes  before the Reaper managed to accelerate; making him jump back.

Y/n(World Breaker):(Mind) This is....curious. 

 Unleashing another Dragon's fang the breaker watched as the reaper's eyes flashed white; making the attack vanish.

Y/n(World Breaker):  Your no longer a Soul Reaper- no...you never were just a reaper..you are something more.

The heroic Y/n stared back at the World Breaker with no emotion in his eyes. His blank stares gathered the attention of those on the ground.

Sona: What's wrong with Y/n? His eyes...they aren't like they used to be..

 Kunou stared up to the sky seeing Y/n's face putting her on edge.

Kunou: Papa...

The Heroic raised his white blade before blade-shaped arrows formed;only saying to words.

Y/n;(NOP) Licht....Regan.

Unleashing them at his World Breaker counterpart  the reaper stood still. 

Y/n(World Breaker): (Mind) They are faster than I thought.

The World Breaker  fired  beams from his chest to try and counter the attacks. Once he did he was unable to react as the Reaper slashed the giant balance breaker;causing it to spill blood. 

Gregori:(mind) Hell yeah he managed to draw blood. Finally one of us managed to scratch him.

Rias: This is...this is our chance! We gotta help Y/n while he still has an edge!

Rias went to try and go after Y/n only for Gregori to stand in the way.

Gregori: No way I can't let you do that.

Rias: What? Last time I remember I don't need your approval to help Y/n or not.

Gregori: You don't see it he's not acting on the damn he gives about you all right now. It's all impulse right now and if you get in their way;you'll all die.

Rias: Why should we listen to you!?

Gregori: I can't explain that yet but listen-

Rias cut off Gregori as she swung her fist causing him to dodge. Gregori looked into Rias's eyes seeing her anger burning within.

Rias: NO YOU LISTEN YOUR NOT THE ONE IN CHARGE HERE! I WON'T LET THE WORD OF A STRANGER PREVENT ME FROM HELPING MY LOVE!

Gregori jumped back shattering a part of the ground as Rias fired a P.O.D at him. After he quickly punched it away Rias yelled once again.

Rias: WE ALREADY  LOST Y/N ONCE BEFORE AND I WON'T LET US LOSE HIM AGAIN! SO IF YOU DON'T EXPLAIN THEN YOUR OUR ENEMY!

Gregori: So this is how you were?

Rias blasted towards Gregori causing him to  grab her hands in a clash.

Gregori: I risk you dying on me Rias alot of people's lives are at risk! People you CARE about dammit!

Rias's eyes widened when she looked into Gregori's eyes feeling a fierce aura beneath them;just like Y/ns. The more she stared into the boys eyes she felt herself weirdly calming down.

Rias:*takes a deep breath* Just tell me who you really are and i'll stop... Tell me your full name and I'll take your words about Y/n.

Gregori: Fine then...my name is Gregori....Gremory.

Rias: W-WHAT?!

(With Riser)

Riser was seen  flying towards where Vali  was seen;standing over Devil bodies. Landing on the ground Riser stared back at Vali.

Riser: So you were a traitor from the very beginning...I always knew deep down it was true.

Vali: I don't know what your implying Riser...they were killed by stray shots..I was a lucky one-

Riser cut off Vali with a ball of fire then smirked;his body bursting with flames.

Riser: Don't take me for a fool White Dragon.. your  sided with the World Breakers aren't you?

Vali: My so the Phenex is more than just the  noble chicken everyone makes him out to be. 

Riser: Riser won't let what you've done go unpunished.

Vali activated his sacred gear then smirked under it's armored state.

Vali: Let's see if you can.

Riser's body surrounded in flames forming the Phoenix armor. 

Riser: Time I rip those wings from your back Lucifer.

While Vali and Riser charged at each other the Y/n's were seen in the air. The  Reaper unleashed a barrage of the arrow like blades-causing the World Breaker to use another weapon.

Y/n(World Breaker): Gates of Babylon.

The Heroic Y/n  slashed down each of the blades unleashed upon him;leaving his counterpart glaring slightly.

Y/n(World Breaker): My abilities are much more vast than a mere Sacred Gear. I've taken the powers and abilities of many  universe fighters! 

The reaper flew through the blades and quickly approached the World Breaker.

Y/n(World Breaker): TIME SKIP!

Using the technique the World Breaker  went to punch the reaper;only to watch the stopped time around him break.

Y/n(World Breaker): (Mind) He did that too with such ease? No matter so long as I don't lose my cool I can-

The Reaper cut him off  by smashing his knee into the World Breaker's chest.  Blasting through the air the World Breaker  stopped himself then  cursed. The Reaper  zoomed after him then swung down his sword;cutting off the evil Y/n's arm. 

Y/n(World Breaker):  I've never met a single one able to cuz me such damage to me before. Dammit  you are-W-What?!

The World Breaker tried to heal his wound only to see nothing would happen.

Y/n(World Breaker): This is impossible why isn't my body healing? Why is this happening?

The World Breaker turned to get his chest smashed by the reaper who glared at him with his eyes changed with blue energy.

Y/n(World Breaker): You.....  that power is beyond what i've ever  seen! I will take it back no matter the cost! 

Y/n(NOP): Vollstandig.

Y/n(World Breaker): You will die here boy I shall ensure it! I shall take that boy all for myself once and for all!

JUGGERNAUT DRIVE!!!!!

As  a sphere of energy surrounded the two the World Breaker stood with his body glowing with energy. 

Y/n(World Breaker): It's time I begin the end of this battle!

Timeskip brought to you by these

Tatsuki pov

I got back into my human form then turned back to Aika and the others.

Aika: So your a Soul Reaper now too?

Tatsuki: I guess so...this is all insane thought I we  would never have to fight like this. I thought we would always stay by Y/n's side.

(Flashback)

3rd person pov

In the halls of the L/n Household  mansion Y/n saw Tatsuki walking over to him with a look of concern. 

Tatsuki: Y/n look can I talk to you for a sec?

Y/n: Sure what do you need?

Tatsuki: Let's go to the roof top...I want to speak in private.

Y/n:If that's what you want.

Following Tatsuki to the roof Y/n stood after closing the door.

Tatsuki: Listen Y/n..this whole thing about you being a Soul Reaper has me stressed out. I just can't keep this in. Y/n  I love you and I wanna believe you'll be alright but I can't help it but worry. The kind of things you've fought aren't anything but monsters and true demons! 

Y/n: I get your worry but i'm the only one who's able to-

Tatsuki: But why do YOU always have to be the one? You've gone through hell for every last one of us Y/n! I can't stand the chance of seeing you hurt or even die-

Y/n  held Tatsuki's shoulders then stared into her eyes as she laid back against a wall.

Y/n: Tatsuki...this is my path...the life I chose to accept. Others could try to do what i'm doing....some could probably do it better. But this universe is mine to protect...it's my home. I keep fighting like this because  I truly care about everyone here more than anything else. 

Tatsuki: Because of us?

Y/n:You guys are always on the line and with every injury and every death...you all are on my mind. So long as I can see your faces alive and well it doesn't matter what I endure.  

I will take any ounce of pain and anything it takes to keep you all safe.

Tatsuki: Y-Y/n..

Inching closer to two kissed then held each other close.

(flashback end)

Katase: Y/n....I hope he's doing ok!

Murayama: It's all we can do right now isn't it? Running to make sure any other people have survived.

Tatsuki: Yeah as long as other are alive we can take that as a win.

???:*coughs* Y-YOU GIRLS ARE FRIENDS OF Y/N?! WE NEED HELP!

Tatsuki: Wait I know you

Your Ikumi Unigaya Y/n's boss !

Ikumi: M-MY SON KAORU IS HURT! H-HE NEEDS SOME HELP!

Katase: Don't worry mam we'll help you!

Puling out the kid from under some rubble the girls helped drag the boy to safety. After getting him to safety the girls watched Ikumi hold her son tightly.

Ikumi: M-MY BABY BOY ARE YOU OK?!

Kaoru: M-Mommy?

Ikumi; OH THANK GOODNESS!!

Tatsuki:(mind) Y/n.... whatever you are we'll handle things around here.

(Back in hell)

Stark slashed down a another sinner showing a group of sinners below him.

Stark: You guys are more of a pain in the ass...

???: So your back here again Stark...

Stark: Huh oh it's you guys...

Barragan and Nnoitra.

Barragan: It's time that we regain revenge for what you've done.

Nnoitra: The Espada are over and so is Aizen..

Starrk: Huh? You guys look serious about fighting me.

Barragan: Hell has made us far stronger than you could ever realize.

Starrk: You guys know i'm still  the Primera ...yet your still gonna fight me?

Barragan: This isn't for revenge or spite but necessity.

Nnoitra: For the sake of our warrior pride atleast give us everything you have if you don't wish to die.

Stark; I've already died alone.... It would be a pain if I did it again without going down fighting,. kick about Los Lobos.

(Back with the Y/ns)

The Reaper Y/n  was seen clashing with his World Breaker counterpart. The World Breaker  blocked his next strike then punched him back. Not wasting any time the the World Breaker kicked him into the wall of the sphere.

Y/n(World Breaker): This sphere around you  was a power I stole from a old-god;and it'll drain you of your power while giving me it along the way.  Do understand what that means boy? All of your life will fade away;with every waking moment.

To be continued