VegetaUchiha: He sure was, maybe sometime Itachi will be able to avoid being cock blocked.

Kuno: Here is the list of Itachi's harem: Rias (main), Xenovia, Koneko, Sona, Serafall, Gabriel, Kuroka, Ravel, Rossweisse.

Dat boi: And like I said to VegetaUchiha, maybe Itachi will be able to avoid being cock blocked.

trex0428: We already talked through PM so no need for me to repeat myself.

Guest: Here it is.

Chapter 25: The Dragon King's Power!

The mighty former Dragon King raised his massive fiery fist, while the man who was like evil incarnate had his fist raised with a large amount of lightning flickering around.

Blaze Dragon King: Iron Fist!

Lightning Style: Thunder Storm!

Their fists connected, sending massive shockwaves. Meanwhile Itachi dodged several water whips and water whirls from Yagura.

Water Dragon: Roar!

Blaze Dragon: Roar!

Yagura roared out a powerful whirl of water and Itachi roared out a blazing wave of fire, they're breath attacks collided creating an explosion and covered the area around them in steam. With his sharingan Itachi detected Yagura's energy in the steam cloud and ran to side trying to get behind the Water Dragon Slayer. Itachi spotted Yagura whom had his back turned and then charged up flames around his body.

Blaze Dragon: Sword Horn!

Itachi flew towards Yagura like a rocket, Yagura then backflipped and the moment Itachi was below him.

Water Dragon: Roar!

Yagura spitted out a whirl of water crashing into Itachi's back, whom suddenly vanished in a murder of crows. "What the?" Yagura widened his eyes when suddenly Itachi appeared behind him with his fist raised and covered in flames. The moment Yagura turned around Itachi's fiery fist collided with Yagura's face sending him flying back.

Yagura growled like a dragon as blue scales grew on his face. "I'm the strongest…! I refuse to lose again!"

Water Dragon Slayer Secret Art: Boiling Rage!

Yagura gathered two massive spinning disc shaped water that had a boiling steam coming from them. "I will win! I will slay you!" Yagura slammed the water discs together and then the discs turned into a massive wave of boiling water. Itachi leaped up to dodge the wave. Itachi looked down and saw that the water had melted a large hole in the castle tower.

Yagura smirked as the wave didn't stop, he then swung his arms upwards and the wave directed back at Itachi. Itachi widened his eyes as the wave crashed into him. Yagura let out a malicious laughter when suddenly the steam cleared revealing a large spectral warrior with a shield protecting Itachi.

Itachi deactivated his susano'o as his eyes reverted back into normal sharingan. 'I don't doubt tou-san's power or anything. But we have no idea what Kai is capable of, it's best I preserve some energy just in case. I better focus on mostly using Dragon Slayer magic since I have more reserves in magic power rather than chakra.' Itachi thought and bounced off from the castle wall.

"I will show you, that nothing beats the might of a dragon! Nothing!" Yagura declared as his entire body got covered in blue scales.

Boost!

Issei swung his fist at Vali whom vanished at high speed, then appeared behind him and kicked Issei in the back. "Tell me, Vali. Why are you working for him?!" Issei asked.

"Why? Only for one reason, power. Kai is a key for me to get stronger, with him I shall become mightier and mightier and then surpass him!" Vali declared as the two dragons charged at each other sending a massive shockwave when they collided with each other.

Michael, Rias, Akeno, Kiba, Koneko, Rossweisse, Gasper and Asia stood face to face with a red-haired man in a black samurai armor, a young woman with long spiky white hair, but most of all, Ophis.

The young woman inhaled her breath and had a small smirk on her face as she glared at Michael. "Take this, mighty devil."

Lightning Devil: Rage!

She spitted out a wave of white lightning right at Michael, the wave crashed into him and Michael placed his hands on it holding it back. 'It feels even worse than Michael and Gabriel's light spears. I see Devil Slayer magic huh.' Michael swung his arms upwards sending the lightning wave flying into the sky.

Sky God's: Bellow!

The red-haired samurai with the fake smile spitted out a wave of black wind that flew crashing towards the Gremory group behind the Shadow Demon. Michael jumped in front of them and shielded the attack by placing his arms in a x-shape. 'This feeling, he's a God Slayer.' Michael skidded back a little as the attack pushed him back a little. "Be extra careful around the one girl there, she uses Devil Slayer magic it's able to do massive damage to all of us." Michael warned the Gremory group.

"Devil Slayer?" Asia questioned.

"There are three different types of slayers, first we have Dragon Slayer, people trained by dragons. Second is Devil Slayer, people trained by Ultimate class devils or above. Third is God Slayer, people trained by Gods." Michael explained.

"So, bottom line, no matter what avoid her attacks." Akeno said as they all got into battle stance with Asia and Gasper hiding behind them.

"Good luck with that." Michael said and they looked at him in confusion.

"Aren't you going to help us?" Rias questioned.

"There is one being here far more dangerous than any of the other enemies. I will have to deal with Ophis, you guys will have to deal with these two." Michael stared at the little gothlolita dressed girl in front of him that was a being of infinity.

"I don't really feel like fighting. But for Kai, Ophis will do anything." Ophis said as she hovered up in the air and Michael followed her.

"I might actually die here. Heh, well guess there are worse ways to go." Michael removed his leather jacket revealing his muscular body and then cracked his knuckles. Michael then began powering up as dark purple, black lightning flickered around his body. He then clenched his fist and charged at immense speed with his fist raised. Ophis raised her tiny hand and caught Michael's fist with little effort. Michael narrowed his eyes as Ophis kept her emotionless expression and their energy began shaking the entire area. So much lightning flickered around them as the lighting tore up the ground around the floating island, tore down a few towers on the castle, and obliterated a few mountains.

Michael then bounced back with some sweat running down his body. Ophis raised her right hand and pointed at Michael with her finger like it was a gun. "Bang." Ophis said as she shot a small magic bullet from her index fingertip. Michael caught the magic bullet with both his hands, the impact of the magic bullet was enough to send Michael skidding back a little until he managed to push the magic bullet into the air.

Michael vanished at high speed and appeared in front of Ophis with his hands directed at the tiny Dragon God of Infinity, he then blasted her with a dark purple wave. Ophis flicked her fingers as Michael's wave suddenly looked like it was going around Ophis as Ophis had formed a magical barrier around her. "Guess that ends the warm up." Michael said looking a little excited while at the same time also a little nervous. Michael proceeded to power up even more as his muscle mass increased, black horns grew out from his forehead, his teeth sharpened into demon like fangs, tattered demonic wings grew out from his back, and black markings appeared around the right side of his upper body similar to Sasuke's curse mark.

"Serious now?" Ophis questioned emotionlessly.

"Yes, I'm at full power now." Michael replied as his right eye turned black with his pupil glowing red. Michael sweated a little nervously but kept a calm expression. 'Even at full power, I have no chance at defeating Ophis. At the moment, I need to stall her as long as possible. If Itachi and I team up, maybe, just maybe we can beat her.' Michael thought as he vanished at high speed and punched Ophis across the face sending her skidding back a little sending a lot of dust around them.

Ophis looked at Michael emotionlessly and brushed of some dust from her clothes, she then vanished and appeared in front of Michael and punched him in the gut. "Let's play." Ophis uttered as Michael grunted in pain and skidded back crashing into a mountain side. "Your species has always been powerful, you Shadow Demons possessed power to fight against even the mightiest Gods. Yet your all that's left of them." Ophis walked up to the Shadow Demon. "Your strength and your overconfidence is the same as your grandfather and your father."

Michael clenched his fist as his body exploded with power reducing the mountain to rubble. "Let's get one thing straight, I'm nothing like that geezer or my old man. Yeah, I might be overconfident, but I'm still me." Michael directed his right palm at the Dragon God and blasted her with a dark purple wave. Michael then flew into the fiery smoke left from his blast and came out from the other side, pushing Ophis back.

Ophis narrowed her eyes a bit as snakes came out from her sleeves and wrapped around Michael's body tying him up. "Your troublesome." Ophis said motionlessly.

"Likewise." Michael uttered and stretched his body out breaking free from the snakes as they vanished. Michael then raised his fist, and Ophis raised her tiny fist as they both threw a punch at each other connecting they're fists sending shockwaves around them.

Tannin flew past mountains chasing a trail of lightning that bounced from mountain to mountain. At the end of the lightning bolt was a smirking Kai. Tannin opened his massive jaws and spitted out a wave of fire towards the lightning bolt that was Kai. Kai landed his feet on a mountain side and backflipped over the fire as it collided with the mountain, blowing it to bits.

Lightning Style: Lightning Crash!

Kai's entire body released a massive amount of lightning as he flew down onto Tannin's back like a lightning bolt striking the former Dragon King making him howl in pain. Kai then performed a set of hand seals.

Wood Style: Wood Dragon!

A Chinese wood Dragon popped out from the ground and wrapped itself around Tannin's body squeezing the former Dragon King. "Don't think it will be this easy, to bring me down! Little man!" Tannin roared and released a huge amount of heat from his body as he burned the wood dragon to crisps, Kai quickly leaped away from Tannin's back as Tannin's body released a huge amount of blazing flames.

"My, my, you put up a much better fight then the Royal Dragon guard." Kai snickered.

"Aquados, Skyrum, Terra, and Rai. My dearest friends… Killed by you and Yagura… In honor of their memory! I will vanquish you! Not to mention those Dragons you killed to gain my attention today!" Tannin roared in anger.

"Heh, if you knew those dragons were just a way to gain your attention, then you must know what I'm after. And yet you came, what a fool you are." Kai smirked evilly as lightning flickered around him.

"I'm surprised though, a mere human like you knows about such secrets. And full well knowing what will happen if you succeed, is just another reason to reduce you to ashes!" Tannin roared and slammed his claw at Kai whom vanished in a flash of lightning just in time to dodge.

"You dragons are such prideful creatures, that pride will be your races downfall." Kai punched a wave of lightning towards the former Dragon King whom spitted out a wave of fire that collided with the lightning causing an explosion. "Once I have taken you down, your fellow Dragon Kings are the next on my list."

"Don't think you have won just yet!" Tannin roared.

"I have Ophis on my side, a dragon slayer, a god slayer, a devil slayer, the White Dragon Emperor, not to mention multiple soldiers from Khaos Brigade on my side. While the only two you have of use is that son of yours and the Shadow Demon, you have a weak Red Dragon Emperor, a few high-class level devils and middle-class level! The way I see it, I have the upper hand!" Kai smirked widely with his sharingan glowing blood red as he released a ton of bloodlust. "You should have brought Sirzechs and the other maous, or even Azazel! But, it probably won't have made that much of a difference!" They both flew at each other and then Tannin with his massive dragon head, and Kai with his human head, headbutted each other trying to push each other back.

Meanwhile inside of the castle, Rias, Rossweisse, Kiba, and Gasper dodged a wave of white lightning coming from the Lightning Devil Slayer, Mia. While Akeno, Xenovia, Koneko, and Asia dodged a wave of black wind whirls coming from the Sky God Slayer, Arata.

"Can't believe we're stuck with the small fry." Mia sighed in disappointment.

"Now, now, at least you get to put your powers to use." Arata said with his fake smile. "Besides, with weaklings like them this will be over quick."

"Don't underestimate my beloved servants, or it will be the last mistake you will ever make." Rias said with cold calculative narrowed eyes.

"Looks like miss succubus is threatening us." Mia mocked with a devilish smirk.

"She sure got some fighting spirit within her, doesn't she?" Arata said with his fake smile.

"Leave them all to me, no need for a God slayer to fight a bunch of devils." Mia smirked overconfidently.

"I suppose so, very well. I will leave them in your hands miss Mia." Arata leaped onto the top of a tower, ready to witness the show.

Mia had white lightning gathered into her palms, as her bangs covered over her right eyes and the upper half of her face covered in a shade as her golden eye glowed. She sadistically licked around her lips and then charged at the group.

Lightning Devil: Destruction Fists!

Akeno quickly formed a defensive magic circle in front of them. But, the moment Mia's lightning fists connected the circle shattered. They all leaped back and Rias blasted Mia with an orb of destruction, Mia caught the orb but the explosion was able to send her skidding back a little.

Mia growled a little when suddenly she was surrounded by magic circles, she widened her eyes as her gaze directed at Rossweisse whom swung her right arm to the side, and Mia was bombarded with a fire, water, ice, light, and wind attacks bombarded Mia. "If Devil Slayer is the same as Dragon Slayer they feed off their element, in her case it's lightning." Rossweisse informed the others.

"Akeno, that means you have to avoid using your lightning attacks." Rias said to her queen and she gave a nod in response.

Akeno then created three magic circles sending a wave of fire, ice and water at Mia further enhancing the explosion left by Rossweisse. "Look out!" Akeno shouted as multiple lightning spheres came flying out of the fiery smoke. Mia leaped out from the smoke and slammed her lightning fist into Akeno making her yelp in pain as she was sent crashing into a wall.

"Akeno!" Rias shouted and then in anger directed a destruction wave at the Devil Slayer whom smirked at her.

Lightning Devil: Rage!

Mia spitted out a white lightning wave that collided with the destruction wave causing an explosion, but the lightning wave didn't stop as it kept coming and flew towards Rias. Rias widened her eyes as the lightning wave flew right into her. "That's one down." Mia smirked when suddenly she was blasted in the back by a destruction wave. Mia landed face down onto the ground as she had a burned hole in the back of her purple shirt. She looked behind her and saw Rias, unharmed standing next to a panting Gasper.

"Are you okay, buchou?" Gasper asked.

"Yes, thank you Gasper." Rias replied with a warm smile as Gasper had used his time freeze ability to pull Rias out of harms way. Rias then turned back to Mia with her eyes going from warm and friendly to narrowed and cold.

Mia raised her right fist as it was flickering with white lightning, suddenly her arm and legs froze in ice. As Akeno and Rossweisse focused their magic power at the Devil Slayer. "Heh." Mia chuckled as the ice around her exploded from the lightning.

Kiba and Xenovia appeared behind Mia with their swords raised, they both swung their blades at her but Mia managed to duck and had lightning flicker around her, sending the two knights flying back as they were electrocuted. Kiba slammed his blade into the ground.

Sword Birth!

Multiple swords popped up from the ground around Mia, some of them managing to cut her and some managing to make some cut marks in her clothing. Mia leaped into the air when suddenly in front of her was Koneko with her kitty ears and tail sticking out, and with a blue flame around her fist. "Ey!" Koneko swung her fist into Mia's gut making Mia cough up some blood from the powerful punch from the tiny rock. While Asia healed those of her friends that were injured.

"Like I said, don't underestimate us." Rias smirked.

Mia growled in anger at first, but then she smirked and began to chuckle. "This is a surprise, I guess there is some truth in power in numbers." Suddenly Mia had some black markings appeared on the right side of her face as her bangs flew up, her right eye was yellow and soulless with a black slit pupil. "Play time is over." She vanished in a white lightning bolt and appeared behind Rias and swung her leg into her back, and then blasted the others with lightning spheres that hit everyone besides Gasper whom managed to avoid it with his time freeze ability, and Asia who was pushed to the side by Akeno.

"Everyone!" Asia shouted in concern.

"Asia-chan, heal everyone, quick!" Akeno stood up with some of her clothing torn revealing some of her black laced bra.

"We will hold her off! Heal the others!" Rias whom also had some of her clothing torn revealing her dark purple laced bra.

"Right!" Asia went to heal the others one by one.

Akeno formed a dome of magic circles around herself, Rias, and Mia. Akeno quickly formed a magic circle underneath Mia and began freezing her lower body, and then Rias blasted Mia while she was distracted with a large sphere of destruction. Mia reacted as the sphere was close to her and quickly brought her arms in an x-formation blocking the sphere from doing too much damage to her.

Mia gritted her teeth as her arms were covered in burn marks from the destruction sphere. "I will slay you, devil bitch!"

Arata kept his fake smile as he watched the battle. "Although Mia is the weakest of me and Yagura, it's surprising seeing her struggle like this. Seems like miss Gremory and her peerage are stronger than we thought. And they're teamwork is excellent, and to top it off miss Gremory is an incredible skilled tactician. She's able to use each of her servants' strengths to her advantage against Mia. And with Sacred Gears like Twilight Healing and Balor View she can avoid any critical damage and heal any damage inflicted upon them. Then there is Sword Birth, a strong Sacred Gear but not that useful against a fighter like Mia. Same for Durandal, but she makes up for it by having a Valkyrie whom is incredibly skilled in magic, and a youkai nekomata. Seems like Mia has her work cut out for her, guess I might have to step in if Mia dies." Arata chuckled a little.

Boost!

Divide!

Blue and green lights emanated from the ravines of the mountain area on the floating island. As Issei and Vali in their Scale Mail armor crashed into each other and sent a few blast attacks at each other creating explosions around the ravine. Blue and green lights crashed into each other and lighted up the night sky of the underworld. They then connected their fists sending shockwaves around them.

Boost! Boost! Boost! Boost!

Divide! Divide! Divide! Divide!

For each time Issei boosted up his power, Vali divided that power and into himself. Vali then kicked Issei into the sky and instantly flew up with his hands locked together, he sledgehammered Issei with his hand emanating a lot of the energy he absorbed from Issei.

"Ugh!" Issei coughed up blood. As Vali flew towards Issei, Issei quickly reacted and flew away from Vali's attack dodging it just in time as Vali's fist connected with the ground making a crater. Issei skidded back pulling up a few rocks and gathering a trail of dust, as he charged up energy into his hand.

Dragon Shoot!

Issei punched a red orb of energy sending a red wave of energy at Vali, crashing into him and send him crashing into a mountain side. As Vali was regaining his focus and footing Issei was charging at Vali with his fist raised. Vali smirked eagerly beneath his Scale Mail and dodged the punch from his rival just in time as the power of Issei's punch brought the small mountain into a pile of rubble. Issei turned his head to Vali as Vali punched Issei in the face sending him back a few steps. Vali then continued to throw a barrage of punches at Issei sending him back a few steps for each blow. Vali threw another punch, although his fist was caught by Issei.

Issei smirked beneath his Scail Mail armor and grabbed a hold of Vali's wrist and proceeded to throw a set of punches at Vali's face. Vali and Issei then kept punching each other multiple times not one of them backing down. As they kept going their Scail Mail dragon armor helmet began to crack and their right eyes were visible. They then gathered energy into their fists gathering more power into their punches, and now for each punch their helmets began shattering as they're faces came to view with trails of blood coming from their mouths and from scratches on their foreheads.

They took a small break from punching each other and stared at each other, panting. "Is that all you got?!" Issei smirked mockingly.

"Heh. You should hope so, cause at this rate you won't survive my full power." Vali retorted with a similar mocking smirk.

"I won't be so sure about that!" Issei punched Vali in the face and let go of his wrist making Vali back up a bit, before Issei kicked him across the face. Issei then sent another blast attack but suddenly it was redirected into a pile of rocks.

Reflect

Vali smirked and sent a blast attack crashing into Issei, Issei skidded back as the blast crashed into him. Vali moved at immense speed and appeared behind Issei and shoulder charged Issei in the back, and then punched him flying forwards, Vali then appeared above Issei and sledgehammered him into the ground. Issei vanished at immense speed and then reappeared behind Vali grabbing him by the back of the head and pushing his face into the ground, he then leaped up and flew crashing down like a missile, stomping Vali in the back forming a crater.

Divide!

Issei's strength suddenly felt like it mostly vanished, and Vali pushed him off him and slammed his fist into Issei's face. "Ow! Damn it hurt!" Issei grunted in pain.

"Partner, remember how your last encounter with him went?" Ddraig's voice came from Issei's gauntlet.

"Yeah, but back then he was only testing my power. When he began to get serious that damned monkey showed up." Issei said referring to the fight between them at the conference.

"Yes, but you have grown stronger since then. Although it might not be easy to use the same strategy again, you have to use your creativity to your advantage." Ddraig said.

"My creativity?" Issei questioned remembering how he tried to overload Vali's wings during their last fight.

"Yes, take Menma for example. He was both incredibly powerful, and creative and unpredictable. You might not share his power, but you have a creative and unpredictable mind just like him. And that is what made him a great warrior."

"You really think I can measure up to him?" Issei questioned in slight shock.

"Yes, at first he seemed like a hopeless case as well. But after time I realized that I was wrong to not judge his potential that quickly. And you seem even more hopeless than he ever did so, I figure that you have an even greater potential than he ever did."

Issei sweat dropped. "I don't know if I should take that as an insult or a compliment." Issei got his act together and charged at Vali at full speed. Vali threw a punch as Issei approached him, but Issei dodged by flying a little to the side and swung his foot into the side of Vali's face sending him flying to the side.

Vali charged at Issei while laughing like the true battle maniac he is. "More! Entertain me more!" Vali sent multiple dark white beams of energy at Issei. Isser countered with a set of blast attacks and managed to dodge some of them, but then out from the smoke of an explosion one of their blasts had made, came a beam from Vali that blasted right into Issei's right arm causing a piece of the Scail Mail to break off.

"Ugh!" Issei then blasted Vali with a Dragon Shoot wave, Vali however stepped to the side dodging the wave. But unknown to Vali whom was to focused on the wave, Issei had moved at immense speed before that and appeared behind Vali as his own wave came at him. Issei then stretched his hands out, caught the blast and suddenly it was reflected and crashed into Vali's back.

"Huh? How did you know it would just reflect back at him?" Ddraig questioned.

"I-I umm, I didn't. I took a chance." Issei replied with a small nervous laughter.

"Yep, you are even more hopeless then Menma, which is why you're so interesting."

"Well, hopefully your right about the hopeless thing makes you have great potential." Issei readied himself as Vali flew out from the rubble and towards him. Issei caught Vali's fist, however the force of Vali's punch was pushing him back and he was reaching the end of the floating island. "Damn!"

Boost! Boost! Boost! Boost! Boost!

Issei's entire body let out a powerful red glow as he was now able to push Vali back, and then Issei punched Vali in the gut and pushed him back further and quicker getting away from the edge. Vali grunted in pain, knowing that Issei's power was now beyond the limit of what he could divide. Issei kept pushing Vali, he pushed him even through several rocks. Issei leaped back and sent a red blast crashing into Vali creating an explosion.

Issei then began panting a little. "What's going on?"

"You have to remember that he can keep the Balance Breaker up longer than you. You cannot afford to stall, you have to defeat him before your time limit runs out, and by using all that power at once you have shortened your time limit." Ddraig warned his partner.

"Isn't there another way I can keep up longer?" Issei questioned.

"Maybe I can help." A new voice came from the gauntlet.

"Wait, what?! Who are you?!" Issei questioned.

"Th-That voice… is that you Menma?" Ddraig questioned.

"Hey Ddraig, yep it's me! Menma Haruyoko at your service!"

"H-How are you in there?!" Issei questioned.

"Well a piece of all my former wielders remain within me, however I don't think anyone of them have managed to communicate to my current wielder like this before." Ddraig was the one to answer the question.

"He, he, I'm special." Menma was heard chuckling in a joking like tone that soon switched into a more serious tone. "Listen up, I will help you get the necessary power to last a little longer. I will support you with my own energy from inside of ol' Ddraig here. However, that supply will be limited, at best you might keep the Balance Breaker going for about an hour extra."

"Really? Wow thanks!" Issei grinned.

"Also… once you're done with him, focus on the real threat."

"Real threat?" Issei questioned.

"Kai Yami, I tell ya. He's more dangerous than any of the White Dragons Emperors I have faced in my lifetime. And he's far more powerful than what the history books have led you to believe. Whenever he and I fought we changed the very landscape of this world, and almost even destroyed multiple countries, and sometimes we did. That man is my greatest enemy, my greatest rival, and… my best friend."

Issei looked up in the sky to see the clash between Kai and Tannin as he saw the wide evil grin on Kai's face that made his skin crawl. "That guy is your best friend?"

"He wasn't always like that. But people change during time, and during wars." Menma uttered as Issei felt more energy growing in his body.

Water Dragon: Wing Attack!

Yagura gathered water around his arms making them resemble dragon wings and slammed those water wings at Itachi, whom leaped back in time to dodge. "I will give you one chance Yagura, surrender or face the consequences." Itachi said with his sharingan rotating.

"Me? Surrender? I am destined to be the mightiest dragon! I will crush you in order to make it happen!" Yagura declared and punched a wave of water crashing into Itachi whom turned into a murder of crows.

"Last time I was crippled in power, now, I am at full strength. If you lost to a weakened me, what makes you think you can beat me now?" Itachi's voice echoed around Yagura as the sky turned red and crows flew all around the area.

"Just shut up…! I will slay you! I will kill you!" Yagura declared as his body turned into a large blue western dragon with a scar across its left eye from Yagura's last battle with Itachi.

Water Dragon: Sea Emperor Roar!

Yagura spitted out a massive whirl of water at the young Uchiha, Itachi narrowed his eyes as he grew purple scales around his face, he was entering his perfect Dragon Force. "Then you leave me no choice." Itachi's entire body erupted in flames and he flew like a rocket towards the Water Dragon. Itachi's burning body managed to pierce the water whirl splitting it in two as he kept pushing himself further towards the Water Dragon. "In the name of the Blaze Meteor Dragon King, Tannin. I Itachi Uchiha herby sentence you Yagura, for all your crimes committed against the dragon race, to death!" Itachi declared as he crashed into Dragon Yagura's gut.

Blaze Dragon: Sword Horn!

Dragon Yagura gapped, his eyes widening as Itachi pierced through his gut. Itachi flew clean through Dragon Yagura, he then turned around inhaling his breath. Yagura slowly turned around, when suddenly Itachi spitted out a wave of flames that pierced through the hole in Yagura's gut, expanding it. "AAAAARRRRRGGGGGHHHHHHHH!" Yagura cried in pain as his massive dragon body fell to the ground.

"Well, this was an interesting turn of events." Kai smirked as he formed a clone to hold of the former Dragon King.

Kai leaped down towards Yagura and approached him. "M-Master… I…"

"Don't worry Yagura, your service has not been in vain." Kai smirked evilly as he formed a set of hand seals.

Sealing Jutsu: Phantom Dragon!

A ghost like dragon appeared and entered a shocked Yagura's body. "M-Master… What are you doing?!"

"Gathering what rightfully belongs to me. Did you know this about these jewel pieces? When the one who possesses it dies, it gets passed down to the one who killed said one or the one who was closest to them. And for your dragon Aquados, you were both." Kai smirked viciously as the phantom dragon exited Dragon Yagura's body holding a piece of a red jewel.

"B-But… you said, I was going to be…" Yagura uttered, as Itachi stared at the scene in shock and bewilderment, while Tannin growled in anger trying to get passed Kai's clone.

Flashback: 1945, Japan.

A little young boy with white hair was walking on a beach, with two people that were his parents. When suddenly in the not so far distance a bright light appeared. The boy widened his eyes as the bright light grew with a large fiery smoke approaching them. The parents grabbed the young boy and ran as quickly as they could. They then saw a small sand hole in the ground and quickly jumped in and once they landed they both shielded the young boy. As the burning heath of the explosion came over them, and everything went dark.

The boy after a while, weakly opened his eyes, feeling that his body was burning. When he opened his eyes, he was met with a horrific vision of two burned bodies holding around him, the bodies of his parents. His body was covered in burn marks, tears ran down his eyes and landed on his burnt skin that only increased the pain. He broke free from his dead parents hold, and looked up as he climbed out of the small sand hole, only to be met by the sight of a burning city in the slight distance.

He crawled his weak body across the beach, when suddenly the pain became too much and he gave in, ready to embrace death. When suddenly something large rose from the water.

"These humans and they're conflicts… most of them are powerless, yet they're capable of such destruction." The beast was a blue western dragon that only looked at the aftermath of what was left. He then heard a whimper and looked down and saw the young boy. "What's this? A human child?" The dragon lowered his head and looked directly at the young boy. "Do not fear young one, I mean you no harm." The dragon said to the young boy who was too weak to even move. "I'm Aquados of the royal dragon guard, what is your name son?"

"Y-Yagura." The boy weakly replied.

"Yagura, your extremely injured. Where are your parents?" Aquados asked as Yagura looked over to the sand hole where what remained of his parents laid. Aquados looked at the young boy with sadness in his eyes. "I'm truly sorry, Yagura. I wish to help you, do you accept?" Aquados asked the young boy whom only nodded weakly. "Very well, this might sting at first." Aquados formed a water bubble in his claws and, the Yagura's body levitated into the air and the water bubble embraced him. Yagura at first twitched his body in pain and cried out a little, but then his wounds started to vanish, his burnt skin started to turn normal again, and soon his entire body was healed.

"The pain, is gone…" Yagura uttered in awe.

"Would you like to join me, boy?" Aquados asked knowing this young boy's family was gone.

"Join you?"

"I'm offering you a new home child. I will even teach you dragon slayer magic so that you won't ever be powerless again." Aquados spoke and Yagura widened his eyes at those words, not wanting to be powerless like he was today.

"Th-Thank you…" Yagura bowed.

A few years later

Yagura being now more grown up, looking like he was in his teens. Spitted out a whirl of water at a mountain reducing it to rubble. "Well done child." Aquados whom stood behind the young man praised.

"It's still not enough… teach me something else, Aquados, father, please." Yagura begged.

"There's nothing else to teach you, you have gained perfect Dragon Force, and fully mastered all the spells. Now you have to grow stronger on your own." Aquados replied.

"B-But I need more, there are still several beings out there stronger than me! I don't need to be stronger then all of them, but I need to get stronger! So, that I can prevent all conflict and create peace! So, that what happened to me will never happen to anyone again!"

"Child, those are some big words. Strength isn't all you need, you need way more than that to create peace. Although, I'm afraid to say this… but, no matter what conflict will always rise. And there is no way to prevent it." Aquados said.

"I won't accept it! If I can get stronger, then I can make people avoid conflict! I just know it!" Yagura argued.

Aquados sighed. "Listen, I have a meeting with the Blaze Meteor Dragon King Tannin. We will discuss this more when I return." Aquados said and flew off.

Yagura walked back and forth inside of a cave in the dragon valley in the underworld, where he and Aquados lived. "Why can't he just see it! If one has power one can make others do what they want! History shows that clearly!"

"Indeed." An unfamiliar voice appeared.

"Who's there?!" Yagura got into battle stance.

"A friend." In the shadows was a man with red glowing eyes that had three black tomoes with a black dot in the center. "Someone who offers you a solution to your wish." The figure walked out revealing to be a hooded young man with black spiky hair. "Names Kai, Kai Yami."

"A solution?" Yagura questioned.

"I can help you create true peace, unfortunately there is a lot of work to do, and I need help." Kai said and walked up to the young Water Dragon slayer. "I can help you create true peace, and make you the mightiest dragon. I will make you to be one of the strongest there is." Kai reached out his right hand.

"When you say a lot of work… how much are we talking about?" Yagura questioned.

"Sadly, peace can never be achieved in this world, it's too polluted with the seeds of hatred and conflict. Therefore, we must destroy it and make a new world rise from its ashes, a world with no pain, no hate, no wars, no unnecessary bloodshed." Kai said, and this peeked Yagura's interest a little, but he wasn't sure about destroying the world.

"Why destroy it? How will that result in peace? And how is that peace?" Yagura questioned.

"In this new world, we will establish a new world order. A world order which makes everyone avoid all the things that leads to war and bloodshed. Besides, sometimes you have to sacrifice somethings in order to achieve your goal." Kai spoke with words that made Yagura listen even closer.

"Keep talking." Yagura said and Kai smirked.

After a while Kai managed to convince the young Dragon Slayer to follow his plan. A plan which required something Yagura desired, power. "There is something your dragon friend has been keeping from you."

"What? No, Aquados wouldn't do that." Yagura backed away a bit.

"Are you sure? Then how come he hasn't told you about this power you can achieve quite easily?" Kai said which increased Yagura's curiosity. "I will tell you why. It's because he fears you, fears your potential, he fears your power."

"What?"

"Your power is to slay dragons, at first he thought you probably could never reached it. But since you have, it only makes sense that he kept this secret from you. It is written in the ancient texts of the Dragon Slayer magic art, no human has ever learned it except for you, it has only been taught to younger dragons and on rare occasions to devils, but never a human. They never thought we had the potential to reach the level of power you have now. It is said in the texts, once a none dragon, dragon slayer tastes the blood of a dead dragon. They unlock the greatest power a dragon has, and that's a dragon's body." Kai said and Yagura widened his eyes in shock, when suddenly Kai threw a pile of papers at him. "This is the ancient texts, it's written in the ancient dragon language, although I assume you can read it, can't you?" Kai smirked as Yagura picked up the pile of papers. "Once you have read them, make your decision and meet me on the outskirts of the dragon valley. I will be waiting there every day around this time." Kai said as he vanished into the darkness.

Once Yagura had read through the ancient texts, he first checked if these were the ancient texts, which he managed to confirm. It then meant that everything Kai said about what Aquados has been keeping from him was true. "If you achieve this power, we can bring true peace." Kai's words echoed through his mind. "Sometimes you have to make sacrifices in order to achieve your goal."

After a few days Aquados returned from his meeting. "I have returned child."

"… You lied to me…"

"Pardon, Yagura what did you just say?"

Yagura showed Aquados the ancient texts and the dragon widened his eyes in shock. "You said there was nothing more I could learn."

"Where did you get that?"

"You lied to me." Yagura gathered a water between his hands as blue scales appeared around his face.

"Yagura, what are you doing?"

"I'm sorry Aquados, I am truly grateful for all you have done… but I have to do whatever it takes to achieve peace, no matter what kind of sacrifices I must make." Yagura charged at Aquados.

After a long intense battle, Yagura stood victories, covered in Aquados' blood. Scales then grew all over his body, his hands turned into claws, he grew wings and a tail. "More!" Yagura went around and killed every dragon in the area, and bathed in their blood, until he had turned into a fully grown blue western dragon. Knowing that the royal dragon guard and the Dragon Kings were not far away, he fled to the outskirts of the valley, where he met Kai. Yagura turned back into his human form, and Kai extended his hand to Yagura, whom accepted.

Flashback end

The light in Yagura's eyes vanished as he died, and Kai smirked evilly above him. "You have served your purpose, and your efforts will not have been in vain, old friend. I shall achieve the peace you and I wanted." Kai laughed maniacally, when Tannin suddenly destroyed Kai's clone and flew towards the real one in rage. "Time to get the next one." Kai said and had the jewel piece he took from Yagura vanish into a magic circle.

Itachi was still in bewilderment. What was that jewel piece Kai took from Yagura, and what does it do, and of course what is it for? Itachi narrowed his eyes, when suddenly he heard the ruckus from the battle Rias and the others had against the two other slayers. "I better go help them out first, tou-san can take care of this." Itachi flew at high speed towards his friends to help them.

Rias and Akeno were panting with some of their uniforms torn a little and their bodies has bruise marks on them. They were still inside of the magic circle cage made by Akeno with the Devil Slayer Mia, whom was smirking with a few bruise marks on her as well as some of her purple shirt torn. While outside of the cage was Asia, healing the injured.

"You two sure are stubborn. Why won't you two just die?" Mia grinned with white lightning flickering around her.

"I want to protect my servants no matter what… and since Itachi has always been so strong I have never been much of use to him. If this is the best way I can help him, then so be it I will do it!" Rias flared up with a red-black destruction aura. "So, I refuse to go down! I will defeat you!" Rias gathered a large destruction sphere over her head. "Akeno, get ready to take down the barrier on my signal." Rias said in a low tone to her queen whom responded with a nod.

Lightning Devil: Rage!

Mia spitted out a large wave of white lightning. "Now!" Rias shouted and threw the destruction sphere right into the lightning wave. Akeno took down the barrier and immediately the others stepped in, Rossweisse sent a blast wave of magic power boosting up Rias's sphere in power to push the wave back, Koneko then threw several white blue flames at the sphere helping it getting boosted in power as well, Akeno sent a wave of fire to boost up the destruction sphere's power.

Rias's sphere was now equal in power to the lightning wave but neither of the attacks budged. Suddenly Kiba with his holy devil sword and Xenovia with her Durandal sliced the lightning wave making Rias's sphere push further towards Mia whom widened her eyes in shock.

"Don't mock me!" Mia screamed and gathered lightning in her hands, but then suddenly her legs and arms froze, unable to move. She looked over to the crossdressing vampire whom eyes were glowing purple. "N-No!"

Rias gathered all of her remaining power into the sphere and sent it blasting into Mia whom screamed in pain, and flew across the balcony of the castle's side, crashing through pillar after pillar until she crashed into a brick wall and fell to the ground unconscious. Rias was panting and felt drained of her energy, she fell backwards when suddenly someone caught her.

Rias opened her eyes weakly and saw Itachi holding her with his arm wrapped around her shoulder. Itachi smiled down upon her and she returned it with a weak smile. "You've done good, rest now." Itachi said and gently put her down. He smiled as Rias closed her eyes to rest, he then narrowed his eyes looking up at the God Slayer whom was looking down on them.

Arata leaped down onto the balcony and gave a fake smile. "My, my, Mia's been beaten, Yagura is dead, guess that makes me the last standing of the Slayer group. Now then, let's begin, shall we-" Arata was suddenly slammed into the ground forming a large crater, as Itachi's fist was buried into Arata's gut, with his samurai armor now shattered in the upper body area, Arata coughed up blood with wide eyes. "Su-Such… power…" Arata uttered in awe as he fell unconscious.

"You're not even stronger than Yagura, you're probably around Sairaorg's level. This is my full strength." Itachi said as his Eternal Mangekyou morphed into normal sharingan and then back into his normal black eyes. Itachi then stood up and turned back to his friends, and walked over to them. "Kai, Ophis, and Vali are all that's left." Suddenly multiple guards arrived holding black trident spears. "Well and them." Itachi swung his arm to the side sending a wave of fire at them, blasting them back knocking them out.

Asia went over to Rias and proceeded to heal her master, and the others gathered around their master. "We can deal with any remaining guards." Kiba said and readied his sword.

"Leave them to us, senpai." Xenovia readied her Durandal.

"We will knock them out dead." Koneko cracked her knuckles.

"I will leave them to you then." Itachi said and leaped off the balcony bringing out his dragon wings and flew off towards a battle.

Someone was punched into a mountain like a rocket, it was Michael and Ophis levitated above him. "I know that you don't like to fight, yet you seem to be willing to do it for this Kai. Why is that?" Michael asked and pushed a boulder off him.

"Kai is Ophis' friend, Kai is Ophis' love." Ophis replied emotionlessly.

"Love? You mean to tell me is true that he managed to capture your heart? I don't know if I should be disgusted over the fact that he's an old man and you look like a… well a little girl, or impressed over the fact that he's got the attention of a Godlike being like yourself." Michael said with a small smirk as he dusted himself off.

"Kai will be young again soon." Ophis said.

"Young again? How?" Michael questioned in confusion as Ophis blasted a magic bullet at Michael.

"You talk too much." Ophis commented.

Blaze Dragon: Iron Fist!

Itachi punched Ophis to the side with his fist infused in flames, sending her crashing into a mountain, reducing it to rubble. "Need help?" Itachi stretched out his hand.

"Normally I would say no, but in this case, yeah sure." Michael accepted the hand.

"Kai asked me to only fight the Shadow Demon, not you." Ophis flew towards them with a motionless expression with only a small bruise mark on her right cheek.

"You don't have to do this you know. Kai is not who you think he is, he is evil." Itachi said.

"Evil is a matter of perceptive, what can seem good to some can seem evil to others. Kai taught Ophis this, Ophis knows Kai better than anyone." Ophis said.

"Then tell me this, what is it Kai wants with those jewel pieces and what are they for?" Itachi asked.

"Kai told Ophis to keep it a secret." Ophis said emotionlessly.

"What you said about Kai becoming young again, does it have something to do with his real eyes and not the fake ones he has now? Is it a power from his rinnegan?" Itachi asked.

Ophis' eyes flinched when she heard that last question, and she tilted her fingers slightly and began releasing tons of pressure and power. Her energy was even visible now and a lot of wind blew around them. "You know too much, Kai says no one besides me and those he trusts should know this secret, and if anyone learns they must be eliminated." Ophis' energy took the shape of a dragon and then vanished.

"Great, you made her mad." Michael sighed. "How come we mostly have that effect on women?"

"Well usually is because their jealous or we made them angry, but in this case… she's just mad at us for threatening her loves plan." Itachi said as he and Michael got in battle stance. "Our combined power, and my magic ability, maybe we can deal with her."

"That's what I was thinking." Michael cracked his knuckles.

Kai leaped from a mountain dodging a wave of fire from the former Blaze Meteor Dragon King. "How many of those jewels have you gathered?!" Tannin roared in anger.

"Four, and now I'm about to go for the fifth!" Kai smirked viscously and formed a few hand seals.

Wood Style: Wood Golem!

A large golem made out of wood with a wood dragon attached to its back appeared, and slammed its fist into Tannin's jaw. "I'm tired of this cat and mouse game, how about we get things started?" The wood dragon the wrapped itself around Tannin's body and Tannin tried to break free. "It's going to be more difficult with this one! I have enhanced its strength."

"I am Tannin, I was once ranked a Dragon King! Don't think you can hold me!" Tannin let out a mighty roar and his scales let out a powerful flame that burned through the wood dragon. The golem broke free from the wood dragon attached to it's back. The wood golem formed its right arm into the shape of a cannon and blasted Tannin with an energy blast.

"Yeah, and I might look old. But I'm still strong enough to take out the likes of a maou, and any of the faction leaders." Kai smirked and formed more hand seals and a wood dragon head popped up from the ground, opening its mouth, blasting Tannin with an energy wave. "How'd you like that, mister former Dragon King?" Kai chuckled when Tannin emerged from the smoke and blasted the wood golem with a ball of fire that pulverized the golem. Kai leaped away from the golem just in time and formed another set of hand seals.

Earth Style: Mud Floor!

The ground beneath Tannin turned into a mud and resulting in the dragon slipping. Kai leaped above him and performed a new set of hand seals.

Wind Style: Vacuum Blast!

Kai spitted out a wave of wind that crashed into Tannin, pushing him into the ground, forming a crater. Tannin growled and spitted out a wave of fire, but then Kai performed a set of hand seals.

Water Style: Water Dragon!

On the floating island was a small river, that river formed a massive water bubble that later emerged like a Chinese dragon that crashed into the wave of fire, creating a lot of steam. Kai was now directly in front of Tannin's face and looked at him with his sharingan glowing red. "Huh, smart, should have known you picked up a few things about the sharingan thanks to your adopted son." Kai smirked as Tannin's eyes were closed, Tannin then swatted Kai to the side with his massive claw, swiftly Tannin directed his head at Kai and blasted him with a wave of fire.

In front of Kai was a burned, melted, wall of trees. "Now that was a close one."

"Next time you won't be so lucky." Tannin roared and re-opened his eyes.

"Maybe not, but we'll just have to wait and see I suppose." Kai formed a new set of hand seals.

Lightning Style: Lightning Beast!

Kai sent a wave of lightning that was at the shape of a tiger and charged towards Tannin at immense speed.

Blaze Dragon: Sword Horn!

Tannin flew like a rocket, covered in flames. The lightning tiger then crashed into Tannin, but the former Dragon King brushed it off like it was nothing and kept charging forwards. Kai formed another set of hand seals.

Summoning: Triple Rashomon!

Three large walls then popped up from the ground, Tannin crashed into the walls and kept pushing forward. The first wall began to crack and Tannin broke through, he then crashed into the second wall and kept pushing until he broke through. "Heh." Kai leaped back as he saw that the third wall began to crack. Kai performed a set of hand seals as Tannin broke through the third final wall.

Wood Style: Deep Forest Emergence!

Several large trees popped up from the ground and tied around Tannin's limbs and body, while Tannin's body still tried to burn through the wood, but every time he burned through a new branch appeared. Kai then noticed a few sweat drops dripping from his face. "I'm already starting to feel tired? Damn this old body… only a little longer until I can get back to my prime power…" Kai uttered and formed a new set of hand seals, the next moment three wood dragons popped up from the ground, moved like they were live-like. The wood dragons opened their jaws and sent a blast attack each at the former Dragon King. The three wood dragons kept shooting a barrage of energy blasts at the former Dragon King, creating several explosions gathering a lot of smoke.

Tannin's body exploded in a massive flare of fire and he broke free from the hold, he quickly charged at Kai. 'He's a lot tougher than I expected, I'm getting a little freaked out thinking what he might have been at full power in his prime.' Tannin thought, he opened his jaw and spitted out a massive ball of fire.

The three wood dragons blasted a blast attack crashing into the ball of fire, creating a massive explosion, leaving a crater at the size of a crater from a meteor strike. The explosion was powerful enough to catch the attention of everyone on the floating island. Rias and her peerage looked over at the fight, Michael, Itachi, and Ophis stopped fighting and looked at the fight, Issei and Vali stopped their fight as well and looked over at the fight between Kai and Tannin.

Tannin flew into the air, and Kai gathered a lot of lightning flickering around his hand. Tannin gathered a lot fire into his right claw. "Let's finish this!" Kai shouted.

"Bring it!" Tannin roared and flew down towards Kai with his fist raised, and Kai leaped up towards him at high speed. As they approached each other, not one showing any sign of stopping. Tannin smirked as Kai got close enough, and then stretched out his wings stopping in midair. "Got ya!" Tannin spitted out a massive wave of flames, and Kai widened his eyes in shock as his body got blasted with the wave of fire.

Ophis widened her eyes in shock, Michael and Itachi smirked a little, Vali like Ophis was shocked and Issei was grinning. "Alright Tannin-oassan!"

"He did it." Rias smiled along with the others.

Once the wave of flames died down, Kai's burning corpse fell down towards the ground. His skin was burnt to crisps, his hair burnt off as well as most of his clothes. However, Itachi looked closer with his sharingan and noticed something about Kai's body. He was grinning like a mad man, and his left eye was grey and his right eye was still a sharingan. Itachi gained a look of concern as Tannin looked over to him with a smirk. Itachi then remembered something very important. "Tou-san! Get out of there! Now!" Itachi shouted.

Tannin gained a look of confusion when suddenly Kai pierced right through Tannin's gut, leaving a hole in his gut as Kai was now behind him looking just the way he did before the fire wave hit him, with his hand flickering with lightning, and a smirk on his face as in his hand with the lightning that vanished, he held a piece of a red jewel. Then the Kai who was hit by the fire vanished.

Everyone widened their eyes in horror, Rias gasped in horror and she quickly looked over to Itachi along with the others. Itachi stared at Tannin falling down, with wide eyes of horror, shaking, Itachi began running towards his falling adopted father.

"Itachi… my boy… before I die, I have to tell you something… these jewel pieces Kai's gathering… is to revive a monster known as Dracos…" Tannin managed to speak weakly, not able to say anything else but that about the mystery. "And… you have made me truly proud…"

"No… no!" Itachi had tears forming in his eyes as he kept running towards Tannin, memories of him killing his own parents and their dead bodies beneath his feet, him holding his former lover's body in his arms as she grew cold, Shisui giving Itachi his eye and killing himself.

"You are my son… even though you're not a dragon… I am proud of you… And I-" Tannin uttered as Kai landed on a mountain above him, raising his hand with lightning flickering around it, gathering thunder clouds that formed a large dragon made out of lightning. "And I love you… my son." Tannin uttered as Kai swung down his arm sending the lightning dragon crashing into Tannin's body creating a massive bright light.

Itachi had trail of tears fell down his cheeks as he stared in horror and fell to his knees. "Tannin! Tou-san! No!" Itachi cried.

"Itachi…" Rias uttered in horror and backed away a little as tears ran down from her eyes.

"Senpai…" Xenovia uttered feeling sorrow for Itachi.

"Itachi-senpai." Koneko uttered with a trail of tears running down her face as she hugged Rias. And Rossweisse and the others also had a sad expression for Itachi's pain.

"Tannin-oassan…" Issei uttered and clenched his fists in sadness and anger directed at Kai.

Itachi clenched his fists gathering dirt in his hand as drops of tears fell to the ground. He then heard Kai laughing manically as thunder struck down around him. Then small orange light orbs floated around Itachi, coming from Tannin's burnt corpse. "Don't get sad my boy. Be strong for your friends, your brothers, your fellow dragons. Now rise, my boy…" Tannin's voice echoed through his mind, and Itachi looked at the laughing Kai. "Now rise, my boy. Show him the power, of the Blaze Meteor Dragon King!"

Itachi stood up and let out a scream that sounded like a dragon's roar. As his body let out a red glow and his body got surrounded by the perfect Susano'o. Itachi kept screaming as his perfect Susano'o began to change its shape, it's wings began to look like dragon wings, it's hands turned into dragon claws, it grew a dragon tail, it grew a large neck, it's jaw expanding into a dragon's jaw, growing horns. His perfect Susano'o turned into a spectral version of Tannin that let out a might roar like a dragon.

Kai widened his eyes a little in shock and surprise, and then he gained a smirk. "Well… this is getting interesting." As he looked at the giant red spectral dragon Tannin Susano'o with the yellow glowing eyes glaring at him and letting out a mighty dragon roar.

That's the end for now.

So, two deaths in one chapter, Yagura and Tannin. I feel bad about killing off Tannin since I really like his character. But I figured it was necessary for Itachi to grow as a character. All of the important roles Tannin had later on in the canon story line will mostly be taken over by Itachi or maybe some of Tannin's children since he has like three if I recall, two of which has never been shown in the novels.

Anyway, next chapter will continue the battle and the aftermath of the battle. I will update it as soon as I can.

Remember to leave a review!

-Later!