Shadow of Tranquility (NarutoxHighschool-DXD)

Disclaimer: This story is fiction. All the characters, names and places belong to their respective owners.

"Talking"
'Thoughts'
Memory Lane/Names
"Demonic Voice"
(Thought Bubbles)
Important Stuff

First off, the main pairing is NarutoxKoneko in this story even though there are many female characters he interacted with. The Nekomata is the true heroine, and her epilogue will be showed at the very end of the story. Finally, this is not Elemental Nations Naruto, but I do use a lot of techniques with slight modification. Naruto is almost same level as Great Red. You will see why eventually.

=[Prologue]=
Act I

Before the dawn of creation, there were Aspects. They do not know when or how they came to be nor did they care. They simply existed, and no one really knew why. Eons went by before the universe was born. It expanded across the emptiness, becoming a glimmer of hope from the cold darkness and filled the void with life. From that moment onward, each Aspect gained a conscious thought, a feeling. You could say that the universe gave them a desire, a yearning for something beyond their own pointless and aimless existence. They began to change, shifted, and think for themselves. Soon enough, each took a new form to interact with the physical plane. That form was an orb of light. It allowed them to see and feel the beauty of creation while seeking for a place they would call home.

Time flew by as all things in the universe were attracted to each other. Countless particles fused into one, forming stars and orbiting celestial bodies. Then something different came into being, calling themselves gods, the first one. Immortal, graceful, unchanging they were. However, the universe believed only with death, life would be cherished, and thus mortals were given breath, allowing them to open their eyes to the wonders. Unfortunately, that also spelt doom. From humanity came forth corruptions and sins as their ingenuity begot them; like a parent would give birth to a child.

These strange urges and emotions corrupted the very core of many first ones, and the gods fell from grace. Their purity destroyed, and with their heart changed, their form altered with some to twisted, vile abomination. This was how countless of other species was born, living among side with humans. A few called themselves devils due to the dark nature of their now mutated powers. A balance between all species existed from then on. It was an uneasy and delicate peace, but it was peace nonetheless.

It was then that one of the orbs stopped accompany its brothers and sisters. It was strange that they came to know each other as siblings, yet they do not know if that was true. The orb of light that separated the others had a crimson red glow; like blood that eventually be spilled when the fragile balance would inevitable shatter.

Similarly to a troublesome child, the red orb broke through the dimensional barrier and invaded what one would call the Dimensional Gap. As a greedy child, it did not want to share. Using its power, it had evicted a Dragon God from her home like an owner before taking the form of a massive dragon; truly worthy of its power. The red Aspect had changed, and known to all as the Great Red, the Apocalypse Dragon. It was feared for eons to come.

But what happened to the other Aspect? Four there were; now three remained. They stopped at a green, lustrous world as the fragile balance shattered. Three factions arose from the ashes, the Angels, Devils and the Fallen Angels. Under the leadership of the Biblical God, the Four Great Satans, and the Fallens, they started a conflict that would eventually be known as the Great War.

It was during this turbulent time that our hero was born. It was an era where humans were nothing more than collateral damage and fodder to the great conflict that would engulfed all three dimensions.

"Onii-sama, I'm scare," a young girl with golden blond hair called out. Her malnourished arms wrapped around her big brother's neck as she rode his back through the desolated landscape. Her bright blue eyes were similar to her brother, only much more innocent. She coughed heavily since fate had decided to give her a weak body. The girl somehow contracted a fatal affliction since birth and there was no known cure. It was strange illness, almost foul in origin. The putrid stench in the air as the orphaned sibling passed through only elevated her pain.

"Don't be afraid, Imouto. Nii-san is here with you, as always, I promise Kaa-san and Tou-san that I will look after you. Remember that I will always love and protect you even if no one else does," the blond boy assured lovingly while wrapping his arms around her bottom before gently navigating through the debris that was once their rowdy village. The place that once was home was destroyed before the Great War even begun by strange demonic creatures.

The girl breathing got heavier as the boy put her down a small stone bench, and began salvaging whatever food remain hiding under the rubbles. He couldn't look at his sister at the moment as his eyes let go of several tears. He did not know what to do or how to save his sister. She was dying, slowly and painfully. She was his only family member, and he would gladly pay any price to save her from death.

Unknowingly to both children, a shadowy silhouette passed through the ruins nearby. It watched the blond-haired boy with amusement as the child tried to find anything that would sustain them. After a while, it decided to greet the boy. He quickly used his body to defend his sister against something he did not understand.

"Do you know who I am?"

"Yes, you're a devil aren't you? I'm not afraid of you!" He knew this was a devil through his appearance. It was describe in their story and myth. They didn't believe it was real, but then neither were the monsters that attack their village.

"Yes… a Satan to be exact. You are strong willed, struggling in this forsaken world. Those fearless eyes… such potential you have and yet it is to be wasted here. I need someone like you in my army, child. Serve me for all eternity and I will save your sister from death's grip," a devilish man said darkly, tempting the boy with the offer. The child did not have to think twice and accepted the proposal.

"If you could save my sister then I will serve you for as long as you see fit," the boy said, his oceanic blue eyes unchanging. His conviction was unwavering as he bowed deeply before his would be master, one of the Great Four Satans; leader of the Devils. His forehead pressed against the dirt to show his commitment. He would gladly give his life, his all to save the only precious thing in his life. The Satans took that pledge, and resurrected the boy and his sister as devils with his own powers, thus saving the girl's life as mortal affliction would not affect their kind.

For the years that followed, the boy fought relentlessly, as one of the 72 pillars against the host of heavens as well as the Fallen. His human heart persisted with his devilish appearance even if he was no longer part of that race. Every now and then, he would weep for his former race's desecration in the war. Tried, he did to the best of his ability, to spare as many as possible to reduce the atrocities, but that wasn't enough. It was never enough.

"Onii-sama, the great one is not happy that you continuing to disobey his orders," the girl advised. Her jet black devil wings were flapping in the air alongside with her brother. Her former body was weak, not fitted to become a devil, yet she was allowed to be, thus she was not as strong as her brother was when she was reincarnated as one. She was nothing more than a mere hindrance in many battles. Many devils believed she was just a mere toy to the boy, who she called brother.

"I know, Imouto. But… I just can't kill them, even if they are below us. We were human once; do you still remember Kaa-sama and Tou-sama? They gave their lives to save ours from the youkai," the boy replied with a disdain in his voice. He despised the youkai race for what they did to him and his family. The duo looked below at the human's settlement. He was ordered to kill the weak and capture the strong. Only the strong would resupply their army with useable troops.

"This war had gone on for far too long," the boy muttered sadly, giving his head a shake. He was unable to see when the war would end, and it pained him so. He did not wish to fight, but the oath he took bound him to his master. The girl hugged her brother from the front, feeling his heartbeat as she remembered the time when everything was serene. They were happy with their loving parents, just the four of them side by side. They were poor, but they were content, and every day was filled with cheers and laughter. Those days were long passed, and became nothing more than a distance memory.

The boy continued shaking his head and held his sister. He could not carry out the command. He could kill those that can fight back, but to massacre the entire peaceful village? He could not do that no matter what form he took.

"Why did you not carry it out? Did you not pledge your all to me? My words are absolute!" the blond's master stated, sitting on top of the throne as the high-class devil should. The blond and his only sibling kneeled before the man once they returned back to the stronghold.

"I cannot attack those that could not defend themselves. Please forgive me, Master. I will take any punishment for this," the boy implored, hoping his master would see his reason and grant mercy. The Satan stood up from his seat; he had no need for such servant. Yes, the boy was strong, fearless with fearsome loyalty, but had questioned too many of his orders. He would not allow his retainers to disobey his direct order. It would make him look weak in the eyes of others.

"Naruto… Naruto… I really had high hope for you. From the moment I cursed your sister and destroy your village, I have watched what you would do, but you disappointed me again and again," the Satan revealed as Naruto's eyes widen at the declaration, but before he could do anything, his sister was lifted up from the neck and a loud cracked could be heard. The dreadful sound bounced off the blacken walls of the citadel, stabbing the boy's heart with every ominous echo.

"YOU BASTARD!" He roared. Tears trailed behind the anguished cries as the reincarnated devil lunged himself forward in reckless rage. His body impacted against the dark energy blast that came from his ex-Master's palm. It pierced through several parts of his body, leaving gaping holes as he collapsed backward on to the cold and unforgiving floor. Coughing on blood, Naruto struggled to pull himself up and dragging his useless body slowly toward his sister. The bloody trail was created with his last breath as the building shook from external barrage.

"My Lord, the angels are attacking," a lowly devil rushed into the room to give the message. Naruto outstretched his bloody hand, trying to grab onto his sisters, whose eyes no longer shine. The messenger was stunted at the shocking sight, but did not do anything more than that.

Glass shattered as angels invaded one of the major headquarters of their enemy, hoping to deal a severe blow. The Satan was forced to flee as he was greatly outnumbered, leaving behind the still barely breathing Naruto. The dying devil held onto life as his rage was now unquenchable. His hand gripped his sister's one tightly, not wanting to let her go even though she was already gone.

"Stop! Isn't that Naruto of the Lucifer's Vanguard?" A handsome-looking man with blonde hair and green eyes ordered and kneeled beside the dying boy. Twelve magnificent wings were glowing on his back, and unlike other Angels whose wing were white, his was golden. Naruto turned over with great effort and looked up at the archangel.

"Micheal… help me… I… will … give you… Lucifer's head… it's… a … promise…" the boy begged desperately, choking on his own blood slowly. His hand never left his sister's one. He would not allow them to be separated, even in death. The Archangel looked at him for just a brief moment before ordering his company to bring back the dying devils back with them. Only their leader could make the final judgment.

God, leader of the Angels faction decided to help the boy hesitantly, but Naruto died before the verdict could be heard. The biblical god was powerful enough to stop the tainted soul from moving on, and reincarnated it as one of his archangels. The partial help of his greatest Archangel's essence helped immensely. That was how the maelstrom of rage came to be with only one goal in its mind: revenge.

Months went by and the end of the war was in sight as each side took more and more desperate measure. Spearheaded the vanguard was an archangel with twelve golden wings; many of the opposing side believed it was Micheal himself. However, the hosts of heaven knew better. They were disgusted of how a former devil was now leading the battle instead of the revered angel, himself. Constant distains in their words could be heard, but the boy didn't care. His path was clear and he had a promise to keep.

"LUCIFER! GET OUT HERE!" the archangel roared, sending thousands of light beams toward the demonic mass before him, impaling the lesser devils as he stormed the devil's keep, located deep within their territory. Hundreds of angels were fighting high-class devils as Naruto broke through their defensive line, and crashed through the door. His twelve golden wings spread wide open, casting the ominous shadow across the throne room like an angel of vengeance. No, he was an angel of vengeance.

There was only one person in the throne room, but it was not the one he was looking for. "WHO ARE YOU? WHERE'S LUCIFER?" Naruto roared in rage, holding a brightly illuminated light spear in his hand.

"He's not here," the ultimate-class devil answered with a smirk. Impossible! Naruto knew for certain that Lucifer was here according to their intelligence. It was also strange that they could reach here so easily. There should be more ultimate-class devil guarding this fortress… it was as if they were hastily vacated.

"No… impossible," Naruto muttered before realized he had been duped as the smug ran across the face of the devil in front of him. The hosts of heaven had depleted their forces that were supposed to be defending their capital. Naruto had been tricked as the four Satans were marshaling their entire force for one clean strike, to deal a crippling blow.

Naruto turned immediately toward the entrance as his twelve wings were separated from his back by his two escorts. The light spears were blazing in their hands as their wings turned pitch black. Naruto was stunned as they continuing their surprise attack, impaling their spears through the blue eyes' shocked body. Blood sprayed across the solid light that had embedded itself into the soft flesh. Naruto collapsed on his knee, dropping his light spear from his hand in the process.

"Why?" Naruto asked. He could not believe he was betrayed and was fed false information. He was too brash, thinking that he could finally have his revenge. His blood started to drip off the weapon's side after running across its brilliant surface. The only sound could be heard in that moment was water droplets. The silence ended when the weapons was forcibly retrieved by the traitorous hands as Naruto gasped in agonizing pain.

"Naruto Uzumaki, we've never acknowledge you even after God have told… no, ordered us to do so, he had become senile, too compassionate for this war. We would lose and be exterminated if that was to continue. If he does not leave his throne to someone more capable, then we will make him see the error of his ways. Today, you have committed the greatest atrocity in our race. By collaborating with the devil, your real allegiance, you have taken most of the garrison away, rendering our defenses useless and giving the devil a free passage to strike into the heart of our capital. We here by sentence you to death," the fallen angels declared, framing Naruto as they raised their hands with their weapons glowed brightly.

"You… were the one… who told me…" Naruto muttered as he recovered his strength. Two spears materialize in each of his hands, and without further thought, he speared them into the traitorous angels. The archangel quickly pulled his weapons out of them and blocked the incoming strike from the ultimate-class devil. They clashed for a few moments, but Naruto was getting weaker by the second as his wound's opening became larger with each strike and maneuver he took. Before long, Naruto was kicked through the glass window on the wall side and into the abyss below. Without his wings, he fell into the ravine along with his light spear as it tumbling in air after its master.

Within the darkness, an archangel combated his consciousness; he didn't want to close his eyes and entered the embrace of death. "God… I'm so sorry," the boy muttered remorsefully. He was clipped, and could no longer fly. He couldn't return to heaven in time to warn the others. He didn't know what to do and he didn't want to go away yet.

"I need to help them… Imouto, I couldn't avenge…" Naruto muttered weakly as a black orb floated nearby. It appeared to be attracted to the light. The shining surface of the spear pulsed as the orb swirled around the collapsed form of an archangel. Its slow, elegant path along the air was mesmerizing to those that watched. Even Naruto was enthralled by this, and for a moment, his injuries forgotten.

"Ah young one, who lost everything, powerless yet still have room for compassion I sensed. Hmmm, allow me to help you in your endeavor. Devour me and you shall have powers like you never knew before," the orb offered, tempting the angel. Throughout his brief angelic existence, he did his best not to kill his birth race. This action was greatly frowned upon by other angelic beings. They didn't see devil as their equal and humans was even lower, insect below their feet. Humanity was nothing more than a cheap source of energy that they could empowered with through faith and worship.

Naruto spat out the blood collected around his lips before trying to speak, but failing. He was dying and only God could save him now. There weren't many choices for the blond. Either give up and die, or struggle to starve off the inevitable. A third choice was to merge with whatever this thing was and perhaps it would heal him. There was no other way as Naruto grabbed the orb and swallowed it without any more hesitation since his task was not done.

A surge of energy enveloped the boy as black veins spread across his body, binding him. His wounds emitted strange black light from within the torn flesh before it mended itself. The pain was excruciating, but it was not more so than the one within his soul, thus no scream came. His broken wings erupted in white feathers as bones started to spout to frame them. Naruto's bright blue eyes saw the detached feather, floating in front of him. Its golden glow and whiteness faded away as twelve of his wings closed around him. His holy wings were no longer. He had fallen as the sealed like black marks faded from his body.

He closed his bright blue eyes; several tears escaped from the corner and descended down his cheek. It left the boy's face, trailing along the blacken feather and onto the earthen floor at last. He cleared his eyes and stood up, spreading his wings wide open. He picked up his light spear near his feet as shadows started to ooze off from his hands, spreading across the angelic weapon, devouring the light as it quickly became a dark spear. Black lightning sparks jumping playfully across its now onyx surface, almost in anticipation of what about to begin. Naruto was still him for now, and he would need to rectify his mistake, even if it was the last thing he could do.

Author Note:

I didn't give the name to Naruto's imouto (little sister) because her name and appearance isn't important right now, for her soul will be reincarnated as Koneko Toujou, aided by the light orb as she remembered her previous life. This is dark Naruto, but he's not a monster since his ideals are pretty much intact. Heaven is currently burning as they are being sieged.

The four orbs are… yep you guessed it, the four horsemen of the apocalypse! I did change the color a little so it made more sense with the story.

Red Aspect represents War and Destruction, thus it's the Great Red, the Apocalypse Dragon.
Black Aspect represents Death and Corruptions, which is Naruto.
White Aspect represents Serenity and Purification which is Koneko.
Green Aspect is a secret.

There are some more powers each aspect gives, but I don't want to give out the surprise. It's one of the reason why this isn't OC character, since Jutsu should go with Naruto. Shadow clone ability is an obvious one that Black Aspect gives ^^V. Hope you enjoy this chapter!