Rias: W-What do you mean (Y-Y/n) is alive..

Akeno: And he did that to you?

Asia and Rias helped Up Issei. He was pretty banged up after you and your friend for the jump on him while everyone else was still shocked at the fact you almost killed Issei. After getting him back to the club they fixed him up more there and Akeno bandaged his body and they had to figure a way to trap (Y/n) and bring him back here so they could convince him to hopefully be back in her peerage or at the very least get some answers on why he would Issei in such a way 

After you almost beating Issei Into a bloody Pulp you and your comrades took you to an abandoned place to get a Sacred gear on top of the ones that you already have 

Ace: Do you even know what kind of thing this could do to your body boss? You already have 3 Sacred gears that make you powerful 

(Y/n): Yeah so this will make me more powerful 

Ace: Then if you were so powerful why didn't you kill the pervert with the sacred gears that you already posses? 

(Y/n): He just needed to be taught a lesson and at that moment it wasn't the right time. I will kill him with my two hands in front of the people who love him so dearly especially in front of the ones who betrayed me.

You whispered that last part but it was still loud enough for Ace to hear and he knew your intentions and he didn't mind after all he owed you everything after all you saved him from the deepest part of hell after being banished and was being tortured. 

After awhile the both of them stumbled upon an old looking  castle 

(Y/n): This is the place 

Ace: An old looking Castle that's destroyed and looks like a complete dump what kind of Sacred gear would be in a place such as this 

(Y/n): One that no one has been able to control in decades 

Ace: So what makes you think you can control it

(Y/n) pulled out his sword 

(Y/n): Wait here Ace this will take awhile 

Ace stayed outside the run down castle and waited for you to come out. After awhile it became night time Ace was sitting on a piece of rubble from the Castle then heard a loud explosion making the ground shake violently making Ace slowly turn his head to the noise to see you emerge from the smoke unharmed and with out any scratches or deep wounds but your shirt was ripped 

Ace: The fuck happened in there? 

(Y/n) looked at his hands like it was unreal what had happened in the castle, he felt so much power surge through his veins 

Ace: Boss

(Y/n): I want you to hit me as hard as you can

Ace: What wh-

(Y/n): Now hold on you might have miss heard me. Not half as hard, not some arbitrary percentage. I want you to hit me as hard. As.You.Can. 

Ace: And if i don't play along? 

(Y/n): Then I guess Angela was right about you 

Ace grunted and used his full force to kick you in the head making the ground shake and break from underneath the both of you 

(Y/n): Ooooh consider that nerve touched 

Then Ace was sent back by a force as if he was getting kicked with the same force and more making him fly through the air then landed on the ground breathing heavily, when he caught his breath he was surprised at what just happened he could single hand take down whoever would try to cross his path 

-Timeskip-

Ace and (Y/n) were walking through the forest but something felt odd (Y/n) was able to sense that devils were surrounding them he told Ace to go and he hid in the shadows 

(Y/n): You can come out now there's no need to hide I know you're out there 

The bushes ruffled but (Y/n) still looked straight but the figure came out the bushes to be Akeno

Akeno: (Y-Y/n) is..is it really you 

His eyes shifted over to her voice then turning his head giving her a cold death stare in the eyes and Akeno was brought back the way you looked at her 

Akeno: (Y/n) we have to talk 

(Y/n): ....

Akeno: (Y/n)? 

You didn't care she was in front of acting like she doesn't know what she did, she tried to act innocent. You felt someone rushing at you from behind you and you side stepped seeing a red Sacred gear automatically knowing it was Issei you grabbed his his arm and held him up by his arm 

Issei: Bastard how did you know I was coming to knock you out 

he struggled to get free from your grip he heard "Boost!" but it didn't come from his Sacred Gear he looked up to see a similar one on your arm and he gasped before getting hit in the gut making him hold his gut and you dropped him

???: Divide. 

Issei's powers were instantly drained from his body and he looked up into your eyes to see they were different they looked like a animals eyes 

Everything around Issei changed then he looked up and trembled at what was before him 

Issei pissed his pants and he fainted from the site in front of him and you kicked him over to Akeno. Your eyes returned to normal and you looked up at Akeno as if you were going to do the same thing

(Y/n): You left me for a perverted weakling like this! Him?!

Your voice sounded different and more demonic and it scared everyone around you besides Ace 

(Y/n): All those dates must've meant nothing all the days and nights and time I wasted on you and the others only yo be betrayed and cheated! 

???: That's not true

Rias came out of the trees and landed in front of a crying Akeno 

Rias: It wasn't for nothing we really cared and we seen what we did was wrong and we are sorry just come back to us come back to me we need yo-

You placed a sword in the ground cutting her off and kept your hand on the handle of the sword 

(Y/n): Stop spouting your bullshit Rias,because nothing,nothing at all is going to stop me from getting my Revenge I deserve against you and you peerage of whores(Totally not including Asia) I'll show you what a true dragon is!

Issei started to wake up as Rias was brought back by your words

(Y/n): AHHHHHHHHH! 

The sword started to change 

(Y/n): INCURSIO!!!!!

You transformed into one of your Sacred gears and the power you have unleashed was still going pushing everyone back. A few seconds after the wind started to calm down and everyone looked up to see you in your armor to say you were on a completely different level than Issei was an understatement. and they felt your power from were they were and Issei was awake and unleashed his Sacred gear 

Issei: 'Ddraig is there anyway I can beat him with the current power that I have?'

Ddraig: 'You won't stand a chance against someone like that partner. He can kill you in seconds. you have to get out of here.' 

Ddraig couldn't believe what he was seeing that the power was still rising and he could detect that there was more than one sacred gear he possessed 

(Y/n): Issei hyoudou...I hope you're ready..

Issei looked at him and stood his ground as he trembled in fear but he still had to try.

Hope you guys liked the chapter See y'all soon