Disclaimer: I do not own Highschool DXd or anything to do with the franchise be it anime or Manga.

Kouh Academy

The air crackled with power as both sides continued to fight. Yusei used his wings to gain a little altitude as several beams of light missed his shoulder. These Magicians were tough. Yusei looked across to Vali to see he too was having a hard time. No matter how many they put down, more took their place.

"Thunder Force Strike!" Yusei cried out as his ultimate attack left his gauntlet hand and took out around 20 of the magicians. Yusei then crossed his arms to protect himself from the counter attacks, these attacks really stung. Yusei watched as Vali took out another handful. he growled in frustration, he didn't want to team up but maybe if both of them worked together, then they would cause a lot more damage. Yusei flew up and glided near to Vali.

"These bastards just won't stop coming, what say we team up and take them down together. With your power and mine, infused together, we should be able to turn the tides of this battle. Nearly all the Fallen Angels and Angels guards have been wiped out, only the a few devils remain."

Vali growled inside his helmet, Yusei had a point, they were getting no where with their single attacks. "What do you have in mind?"

Yusei scanned the sky. "It looks like they bunch up together, one group shields, while the other attack, however I believe if we can attack from both side and sandwich them between us, then we will have a better chance of catching them off guard."

Vali nodded. "Okay, you attack from the front, I will sneak up behind, once I take out the attacker, those defending will be forced to drop their guard. Then you take them out."

Both armoured individuals nodded and split from each other.

Meanwhile further away, Azazel was now flying into the air and was now faced with Katerea who was pissed at being called weak. She screamed as she unleashed a huge amount of energy towards Azazel who crossed his arms and blocked the attack, however there had been some serious power behind that attack and his block was suddenly broken.

"I thought there was something strange. No way did you use to have this kind of power, who are you working for Katerea?"

The female devil smiled as she noticed Azazel coat was smoking from her attack. "Someone who shares our vision and wants the underworld to return back to what it was. What's the matter Azazel was my attack too much for the chief of the Fallen Angels."

Azazel laughed. "Hardly, you just caught me off guard, however it seems I am going to have to go all out on you. I was saving this little beauty for another occasion, but I guess this will be a good time as any to use it." Azazel hold out a small item that was gold, black and purple. "You see since the end of the war, I have been fascinated with the concept of Sacred Gears. I created an organisation that researches these mystic artefacts, and through much blood, sweat and tears was able to create one of my own. Behold my very own Sacred Gear. Balance Breaker!" Azazel was engulfed by a bright light, which blinded Katerea from seeing her opponent. However once the light had died down, she froze, and her eyes widened. There in front of her was Azazel, however he was covered in yellow and black armour, and was wielding a axe.

Yusei and Vali plan had worked, with Vali attacking from the rear and he from the front, the Magician were having no time to come up with a counter measure. Already the sky was a lot less crowded, however the sudden shout of Balance Breaker had drawn Yusei attention. Where Azazel had been, a yellow and black armoured figure now hovered.

"So Azazel finally completed it. Took him long enough." Yusei turned to Vali and wondered what he had meant by that statement.

"Sorry, what has he completed. Is that a Sacred Gear?" Yusei noticed Vali nodded and then replied.

"Yes, however it is an artificial one, Azazel created it himself by using the data gathered from the other Sacred Gears, however by the looks of the armour, he had a little help. Anyway our little tag team is over, and now I want to test your true power."

Yusei had no time to avoid, as Vali dived on him, and began to charge down towards the ground. Yusei growled and used his martial arts knowledge to break the hold, he then flipped so that Vali was now on the bottom, heading for the ground.

Vali pushed off Yusei and was able to pull out of the dive before he crashed, he then ascended back towards the sky with Yusei in pursuit. Vali suddenly turned and fired several blast towards Yusei, who was able to dodge at the final second. He then used his power and created a lightening whip and lashed it towards Vali trailing leg and tangled it up. He then used the momentum to pull himself up and threw his fist, hitting Vali square in the jaw.

Vali flew back a few feet, and noticed the crack in his helmet. "Impressive, if only Issei could show this type of power."

Yusei charged forward, he was about to land another punch when he suddenly stopped. "No this fight ends here Vali, I won't fight you, that's Issei job, besides I promised someone i wouldn't interfere between you two." Yusei then descended towards the ground, he was just in time to see a huge explosion and heard the scream of a woman as she was blown to pieces. Yusei noticed Azazel was still airborne however one of his arms was missing. Yusei noticed that Issei and Rias had now returned to the group with Koneko and Gasper, he was about to approach the group when a blast of energy whizzed past him and hit Azazel sending the Fallen Angel crashing into the ground. Yusei snapped his head around and noticed the attack had come from Vali, what the hell was going on?

Azazel coughed as he crawled out of the crater created by the blast of energy., however unlike everyone else who was shocked about Vali betrayal, he turned and looked up at Vali and sighed. "I was wondering when you would make your move."

Everyone looked at Azazel, confused, did he know that Vali would turn on them, if so he must have known that this attack was going to happen, and Vali had been the inside man as to speak. Azazel turned his head and looked at Sirzech and Michael. "Sorry I never enclosed this information, but I wanted to be sure before I said anything. You see several of my team have reported another faction growing, one that is made up of all three sides, and those who don't agree with our peaceful stance. Their called the Khaos Brigade."

Vali laughed, as he remained airborne. "Impressive it seems nothing can be hidden from you, yes I am working on behave of the Khaos Brigade, but we are not interested in world domination, our leader has another goal in mind, one that needs my power to succeed."

Azazel smirked. "That leader would be Ophis right." Azazel heard the sharp gasps, however he pushed on. "So the fact that you had your title stolen too as nothing to do with this little turn coat act, after all you're like Katerea you're both descended from one of the dead devil kings," This statement got more shocked gasped, however the laugh from Vali drowned them out.

"Correct again Azazel, my full name is Vali Lucifer! I am a direct descended from one of the dead devil kings, my mother was human, so I am only a half blood, however my father was the grandson of the first Lucifer."

Azazel smirked. "Of course that makes sense, you being a half blood allowed you to be possessed by the power of the vanishing dragon. To your credit you're the strongest one I have seen in a while."

Vali mocked bowed he then looked down at the group, he was growing bored of this chit chat, he wanted to fight, and seeing how the Trinity gear user had refused, that just left his rival. "Issei Hyoudou, you have heard of my origins, how does that make you feel? You a lowly human, who was bestowed the powers of a God, and yet no nothing of real power. Heck even before you become a devil you were a no one."

Issei was getting upset, and stepped forward. "Just shut up! You know nothing about me!" Everyone noticed a dark red aura was gathering around his body. However Issei was blind to this, all his attention was on Vali."

Vali smirked. "Yes that's it, get angry, prove to me that what I just said was false. Show me all your power Issei Hyoudou. Let us see who is left standing after our battle. In fact once I kill you I might take Rias for myself, after all as you say, she does have some impressive assets."

Rias eyes widened as she used her arms to shield her chest from view. her face had a pink tint to it.

That was the final straw, Issei roared and began to transform into his Balance breaker form. He then ascended towards Vali at lightning speed. "You want to see real power, you son a bitch well here it is Boosted Gear Blade mode!" Ascalon appeared from his gauntlet and he charged towards Vali screaming in rage.

Vali was just able to dodge the strike, and heard his partner.

[The dragon Slayer, I won't be able to deflect one attack from that cursed blade. Avoid it at all costs Vali.]

Vali noted the caution in his partners voice. "So I just have to avoid being hit by it, I can do that."Vali then accelerated and charged head first towards Issei. Both became blurs in the dark sky, all that could be seen was white and red streak clashing. Suddenly the red streak crashed into the ground creating a crater.

Rias was about to charge forward, when her brother grabbed her arm. "It's too dangerous Rias, besides Issei wouldn't be able to concentrate with you involved. This is something he has to do on his own."

Issei crawled out of the crater, how could he had forgotten about Vali divide power, his advantage was now gone. Issei looked up and noticed Vali wings suddenly glowed brighter. "What the hell was that?"

[His wings just dispersed the energy he had taken from you, this allow him to to maintain his power limits. If you have any chance, you need to overload that power source.]

Vali looked down on his fallen rival with a bored expression. "Is that really the best you can do. Maybe you need a more painful incentive, I know what would happen if I destroy your friends you care so much about. Will that be the catalyst that awaken the dormant power of the red dragon Emperor inside you, lets find out shall we." Vali then directed a blast of energy towards the small group however it fizzled out against a shield of lightening.

"Issei don't worry about Rias and the others, I can protect them, you concentrate on taking this jerk down. You can do it pal, I believe in you. Besides if you die now, when will you get the chance to have your way with Rias."

Again Rias suddenly blushed causing a few smiles in the crowd.

Issei looked directly at his best friend and nodded. "He's right, I die here and I will never be able to do all the things I want to do with Rias. I would never become a Harem King, no I won't lose here, my dream is to shag Rias Gregory and every other girl in my future Harem." Issei roared and took off towards the sky, "Draig Transfer all power to Ascalon!"

[Boost, Transfer]

Vali prepared himself and took Issei head on, however Issei fist had slipped under his guard and now his blade was piercing his armour, if that wasn't bad enough, it was boosting constantly, overloading his power supply.

"Take this you son of a bitch, you dare try harm my friends, you piece of shit, feel the power of the Dragon Slayer!" Issei pushed the blade further into Vali armour, which caused it to crack and shatter, both rivals were blown apart and both hit the ground hard.

Vali stood from his crater and wiped some blood from his mouth."Amazing, you completely blew away my Sacred gear, that's what I expect from my rivals, now show me what else you can do." Vali once again shifted into his Balance Breaker form.

Issei however could barely stand, his power was almost depleted. How was Vali able to transform so quickly after having his Sacred Gear destroyed. It wasn't right, it wasn't fair."

[Issei your power is about to ware out, we most withdraw.]

Issei shook his head. "No, I won't. This always happen, I can't let my friends down, their counting on me. I must keep going." Issei finally was able to make it to a standing stance, he noticed a blue shaped orb was laying on the ground between them. It was part of Vali balance Breaker. "Draig you said the Sacred gear evolves and respond to what I am feeling right, we were able to assimilate Ascalon so maybe we can assimilate Vali power too."

[Yes Partner, however that is a direct opposite to my own power, if you attempt this, you could die, are you willing to make such a sacrifice?]

Issei laughed. "Of course, I sacrificed my left arm didn't I, besides, I can't die, I still need to suck on Rias melons, and do lot of other naughty things with her. Not mention become Harem King."

[Ha, ha I like your determination, then lets do this.] Issei watched as his Boosted gear got brighter and brighter. [I will show you the true power of the red dragon emperor as we both survive this as true partners. Issei Hyoudou are you ready!]

Vali looked on and wondered what Issei was doing. "Just what do you think you can do with that?"

Issei laughed and slammed the orb into the ground. "Simple you vanishing dragon dick head, I am about to take your power!" The orb slammed into the ground and the energy released shot towards Issei right arm. He cried out as he felt like his entire body was fire.

"Fuck this hurt!"

Vali watched as his rival screamed in agony as he attempted to assimilate his power. However when Issei was engulfed by a white light, Vali eyes widened. As he heard Draig voice.

[Vanishing Dragon Power is taken!]

Impossible, they were complete opposites, how could a lowly human turned devil succeed in such a feat. Vali growled as the light, died down and now stood before him was Issei who slammed his gauntlets together revealing that one of them was white, while the other was red.

Vali laughed. "Very well you want to get serious, well how about this." Vali then took off towards the sky, his wings suddenly expanded and began to glow.

[Half Dimension]

white pulses began to resonate from his wings, and caused everything to shrink around him.

Michael looked on worried. "No he warping the dimension, this is bad. Everything his being reduced by half."

Everyone in the group looked on worried, however it was Azazel who stepped in. "Perfect, this is just the type of Incentive Issei needs. Hey Issei!"

Issei turned to look at Azazel. "What the hell do you want? Can't you see that I am in the middle of a battle here."

Azazel ignored Issei petty complaints. ":Listen up, that power Vali is using divides everything in half, not just building but people too, which means if you don't stop him, well let just say Rias Gremory won't be showing off her impressive bust anymore. The Power will half her breast and every other female in this area."

Issei froze as he allowed Azazel words to sink in. "Rias breast will become half their size, I don't want to live in a world where Rias as a normal rack, she has such wonderful tits, I won't let anything happen to them. Ah Don't fuck with me!" Issei aura began to intensify around him, and roared before ascending towards Vali at lightening speed.

"You dare try to harm Rias Gremory's breast, what type of monster are you, now you die, take this!" Issei slammed his fist into Vali and continued to lash out at him. "So what if you had your way would you half everyone's breasts. Take this you bastard." Issei slammed his white gauntlet hand into Vali causing him to double over, however Issei wasn't done. "This is for Rias great melons, and this is for Asia developing boobish!" Issei slammed his head into Vali own which caused both their helmets to shatter, however Issei wasn't done. "And this for Xenovia huge bazookas." Issei raised his leg and slammed his knee into the abdomen of Vali, causing him to spit up a little blood. Vali crashed into the concrete, he was laid flat out, grasping at anything that would let him stand. Eventually he was able to get to one knee and wiped more blood from his mouth.

"So this is the true power of the red dragon emperor, you get this strong just by thinking of breasts, well now that I know I am facing your true power, I don't have to hold back anymore." Vali slowly stood and started to sway from side to side. " Issei Hyoudou, our Sacred Gear possess another power, one that is far greater then our Balance Breaker form, however to use its power, a sacrifice is needed, and I am more then willing to pay that sacrifice. So Issei Hyoudou behold Juggernaut Drive!"

Issei couldn't believe it Vali was still standing and now he was chanting something, however before he could finish there was a loud crack and someone landed in front of him. The figure was a man, who was carrying a long staff. Issei prepared himself for another battle however it seems he wasn't here to fight, but instead pick up Vali for something. Issei heard footstep beyond and him and noticed Azazel had stepped in front of him.

"Bikou, you were the last person I would expect to see, Hell must have really frozen over for you to side with the Khaos Brigade."

The figure bowed. "Azazel would love to stay and chat, but Vali and I are needed elsewhere." Bikou then slammed his staff into the ground creating a black vortex that began to swallow Vali and himself.

Issei was about to run after them, when Azazel grabbed his shoulder. "Forget it kid, you were only just able to go toe to toe with Vali, if you went after Bikou as well, you would be killed. You will get your chance."

Issei shrugged Azazel hand off him, and dropped his head, as he did, his armour began to vanish. Issei turned to find his vision blocked by Rias chest who was hugging him between her large breast. "Oh Issei, I was so worried." All of Issei frustration and anger evaporated as he just sighed at being in the one place he loved the most.

Yusei was impressed with his best friend, when it counted Issei had not disappointed, hopefully now he would start to take his duty more seriously, especially now a new group of player had joined the battle field. Khaos Brigade, and they were being led by the person who had bestowed him the power of the Trinity Gear.

"Yusei, you okay?" Yusei noticed Akeno was looking at him, and she seemed concerned. He then felt a small hand in his and looked down and noticed Koneko was holding his hand, much to his surprise. Yusei looked up and smiled.

"Yeah, everything fine, just thinking about what the three leader said, and what they were offering me. Am I really worthy to represent the three great Powers?"

Akeno hugged him and nodded. "Yes you are Yusei, if anyone has the power to maintain the balance between the three great powers it is you. Plus think what this could mean to us, to our future together."

Yusei was about to reply when he noticed Michael, Sirzechs and Azazel had approached him, he felt like a mice being cornered by three cats.

"Yusei Fudo, now that the battle is over, we need your answer, you now know that our peace is at stake regarding this new faction the Khaos Brigade, and we will need everyone help to face them in the future. We three leader have agreed that you will be our champion, for your neutral stance on all three parties, so we ask you will you join us? Will you represent our alliance as our champion?"

Yusei looked around and noticed everyone was quiet, however he took a deep breath and nodded. "Lord Sirzechs, Chief Michael, and Azazel, I would be honoured to represent the alliance as your champion." Yusei smirked as he heard Akeno squeal in delight and then hug him. He then broke the hug and noticed the three powers had stepped back and were now stood in a circle.

"Then approach the circle chosen champion, and receive the gift that we the three great factions will bestow upon you."

Yusei let go of Akeno had and stood in the centre, soon as he did, he noticed a magical circle appeared below his feet, this was red like the Gremory seal. Yusei looked over to Sirzechs who was chanting, as he did the circle was getting brighter.

"As the representative of the underworld I bestow upon you power to use demonic energy to fight against your opponents, and to protect this alliance that we have forged."

Yusei cried out as he felt a rush of power flow inside his body, he then noticed the circle below his feet had vanished. Soon though it was replaced by a gold circle and Yusei turned to see Michael was chanting. As he did the gold circle got brighter.

"My gift to you champion will be the power of the light, you will also be able to use any holy artefact and all holy swords."

Yusei eyes widened, both Demonic and Light magic, was that even possible? Surely the two would conflict with each other, however it was too late, he cried out as more power rushed into his body, he could feel the two powers inside him, fighting against each other, however amazingly both settled down and melded together. Yusei noticed the light circle had vanished and now a green one was taking it place. Yusei looked to Azazel and saw him smile, this wasn't going to be good.

Azazel began to chant, causing the green circle to get brighter. "Well Trinity Gear user, you have both the power of Heaven and Hell, so I guess you're wondering what my gift will be to you. Well there is no good being a champion for this alliance with a human life-span is there. My gift you is an extended life-span one that will go beyond a human and lay between an Angel and Devil so you can expect to live for I say 4000 years, give or take."

Yusei blinked in surprise, 4000 years! Was he joking, what about his parents, what about Akeno and the other people he cared about, he didn't want this, he would live on while those he loved died around him, however it was too late he felt the power flow into his body and collapsed and blacked out.