Hey! My name is Dreaming of the Void and welcome to my very first story on this site. I've spent a lot of time reading Beelzebub, and felt like making a story from it. I know it's a comedy focal manga and I love it for that, but this story will be focusing on a dark, bleaker aspect. After all this IS a manga about thugs, gangs, delinquents, and most of all demons.

This will be crossing over into High School DxD, just because I felt it would be the most interesting way to develop this story. Also, there will be certain elements in this story such as those from FMA and Bleach to name a few.

Be warned, Oga will be very different from canon Beelzebub, reasons will be clear in this prologue. This story start's off at chapter 138 so keep that in mind.

Now enjoy!

"...Don't you dare lay a hand on my son, you filthy piece of trash!" ~Tatsumi Oga

Rise of the Apocalyptic Beast

Prologue: The Awakening

'….Is this it?'

That was the thought running through the mind of one 16 year old Oga Tatsumi, high school student of Saint Ishiyama High and current adoptive father to the baby, Kaiser de Emperana Beelzebub IV. A delinquent if their ever was one, a young man who took control over his old school Ishiyama High, a school well known for it's 120% rate of delinquents that ran rampant throughout it's halls. Without supervision nor hold on them. And he was the one who took the whole school by storm and became the top dog of it's delinquents within a week.

And also destroyed the entire school in that same week...

Tatsumi had always been a delinquent due to his personality and the ever present scowl on his face, something he's had since for as long as he could remember. It made others intimidated by him and others sought out to fight him because of this leading up to him learning and adapting to fighting with thugs, gangs and other delinquents at a very young age. It didn't help the fact that his older sister, Misaki Oga, was a former leader of the Red Tails, in fact her constant beatings on him only progressed his skills and demeanor as a delinquent.

Then again he had always been a vicious little brat, straight from the words of his mother. He was abnormally strong, ever since he was a toddler he showed incredible physical prowess that surpassed children, let alone full grown adults. This only made him out to be even more fearsome when other people saw a kid of 10 or 11 throw/hurl/slam full grown men through cement walls and concrete floors with ease. His strength before ever meeting Beelzebub, was abnormally high for a human.

Yet it seemed that kind of strength meant nothing in his current situation.

'...Is this...all my training has amounted too...' thought the currently beaten down Tatsumi Oga, his face slammed into thick cement. His body was completely and utterly broken, his collarbone was cracked, 6 of his ribs were shattered, his left leg was twisted in an odd angle and both of his arms were broken beyond repair.

Blood was pooling from his body, unlike his rival Tojo who was screaming at him to get up, but Tatsumi could no longer hear anything. His vision was beginning to darken, and his strength, once thought to be immeasurable was beginning to wane.

'Has...this...been all for nothing...' Tatsumi was never one to give up, he was too much of an idiot, a fool to know the meaning of the word. It was like his best friend Furuichi said, he was too much of an blockhead to know the meaning of the words like give up or surrendering. That may be one of his own faults, but it's what made him be known as the Rampaging Oga by those who feared and respected him...but mostly feared him.

''Well this was fun, but I think play time is over.'' spoke another man who appeared to be human in appearance, but shared characteristics with other demons from the Demon world. He was a towering mountain of a man. He had spiky crimson red hair with a long pony-tail, as well as red eyes. He had a stubble on his chin with several scars decorating his face, one in particular was a long scar that traversed diagonally from his right eye to his left cheek. The man's face was a bit bloody, but he didn't look all to bad in comparison to his opponents.

The towering demon known as the son of Behemoth, was Jabberwock, General of Behemoth's 34th Pillar Division, bent down and grabbed Tatsumi by his head and easily hauled him up in the air. His red eyes revealing nothing but sheer boredom.

''If this was all you had to muster, then I am very disappointed. Oh well, it was fun while it lasted.'' Jabberwock spoke, but in his hand, Tatsumi eyes twitched slightly. His entire face was a mess, blood was pouring from his eyes, nose, ears, mouth and his head. His nose was broken in several places and his left eye was completely shut due a long deep slash going from his left cheek to his left eyebrow.

Jabberwock readied his other hand, ready to deliver the finishing blow charging it with demonic power, causing his arm to burst to life with black magical power. Red eyes gleaming with cold indifference, the giant demon reared his hand back. ''Now die, Oga!''

And it came, the demons fist moved in a blur of motion and all Oga felt was a slight tug as the demons arm ripped through his abdomen, piercing through flesh and bone. His clawed hands dug and ruptured through his organs just before piercing out his back, no doubt severing his spinal cord.

It happened so fast that the pain hadn't even registered to his brain yet, but that too did not take long, and the pain that followed was beyond excruciating. He could feel the taste of iron as blood exploded forth from his back and it began to bubble up from his throat. Yet Tatsumi clenched his teeth so he didn't cry out, he would not give this bastard the satisfaction of hearing him scream.

But it did not lessen the pain.

Not. One. Bit.

For a moment he heard his friends screaming, but he couldn't see much else due his entire body going increasingly more numb by the minute. The taste of copper was becoming much more evident as it bubbled forth from this pursed lips, staining his gnashed teeth. Plus his dimming vision wasn't helping matters at all.

''Oho? Not even going to scream will you? Defiant to the last, though that's what makes your kind so fucking annoying.'' the Great Demon spat out in disgust. On the other hand, Tatsumi Oga could feel his body start to go numb, tingling sensations beginning to wash over him and the light in his eyes began to dim. His body jerked though when Jabberwock noticed him slipping in and out of consciousness and he gave a nasty sneer to the delinquent.

''Oh no no no, You aren't dying right now. When your beloved home is turned to ash and your pathetic little friends are dead at my feet, then, only then, will I give you my permission to die.'' his words were like a stake pushed through Tatsumi's already beaten pride. It made him feel so angry, and yet so helpless at the same time. It was a feeling he did not like under any circumstance, and the fact this bastard was speaking to him like this only fueled the flickering fire of rage within his soul.

'W-who the hell does this bastard think he is!' Oh he so wanted to scream at the frustration of it all, but before he could even think another thought he heard something that shook him to the core. Something so small, so miniscule one would normally overlook it, but not him. Not after all the time he's spent raising the owner of that voice with that Wet Nurse.

''D-dah...?''

'Ah...that voice...Beel...' the voice of his adopted son made Tatsumi open his only usable eye ever so slightly and what he saw truly made Tatsumi feel like gutter trash, the weakest filth on the face of the planet. The little green haired demon baby was, but a few feet away watching what was happening with tears in his little green eyes. The little baby showed remarkable durability though after fighting while attached to Oga for so long, but he was bearing enough injuries that it tore at Tatsumi in a way that made him feel something, what that was he wasn't sure due to the blood loss making him fade in and out of consciousness.

'Baby Beel...don't cry...don't cry for me...' he wanted to say, but the words just wouldn't come. This was a situation Tatsumi never predicted to happen, he figured everything would be fine like always. He'd kick the ass out of all these bastards, save Hilda and go back home and act like everything would be okay.

But it wasn't like that, instead he had endangered everyone with his own reckless decision, got his own ass kicked by Jabberwock even with the aid of Tojou, and put Beelze in danger of these lunatics. Worst of all, he never reached her time...

'Hilda...' thinking of her, Baby Beel's Wet Nurse and "Mother" on Earth sparked Tatsumi back to life if only briefly, allowing his lone eye to travel from his crying son to the unconscious wet nurse not a few feet away. Her clothes were in tatters, and her body was ragged, obvious signs of torture were easily recognizable. But it was her face, her unconscious form that made that foreign feeling increase a hundred-fold, Tatsumi wasn't sure what it was yet whatever it was made him feel something.

It wasn't anger, but not unlike it.

He never noticed his hands clenching into fists at the sight of her.

'Hilda, if only I had been faster, stronger you wouldn't have ended up like this!' despite what many believed was between him and Hilda. He viewed the Wet Nurse as someone very important to him, like he did for Aoi, Furuichi, and his family. Without her Tatsumi knew he'd be completely lost on how to deal with Beel.

Many made the mistake that she was his wife due to his current situation with Beel, but they were wrong. It wasn't like the notion of it didn't sound at all appealing to him since the scenery of him, Hilda and Beelze together did give off that vibe that they were a couple of parents with their son. He just knew Hilda disregarded the notion entirely, but on some level found it to be amusing.

Some may think he even hated her with their usual arguments and threats toward one another, but that wasn't the case at all. She was just worried for her master, Beelze, and was always testing Tatsumi to see if he is truly worthy of being his parent. In that regard Tatsumi respected Hilda, among other things, her loyalty to Beelze was just like his loyalty to those he calls friends. That loyalty was something he cared for in her and to see her like that after everything she went through, to see her injured just...just...

It hurt, oh god did it hurt seeing her that way, but there was something else that was feeding off his own pain.

'Dammit! Is there nothing I can do, nothing at all!?' he hated this! He DESPISED being this fucking helpless before these bastards! He loathed the notion that he was this weak against these guys, even if they were demons. He still trained himself barebone to get strong enough to combat them. Putting himself in dangerous situations time and time again just to try and surpass that threshold between humans and demons.

But yet, he was now on the verge of dying to this bag of shit, the very same who hurt Hilda!

'Damn it...damn it! Damn it...why...why couldn't I...why couldn't I save her...' that was the last thought Tatsumi had just as he blacked out.

Unknown to Tatsumi at that time he never saw black clouds beginning to roll in from all the four corners of the world. The other occupants didn't seem to notice this besides the Old Demon himself, Behemoth, who was standing on the sidelines watching the battles proceeding's. Narrowing his eyes, he pulled his glasses off to see the rolling waves of black thunderous clouds beginning to encompass the entire sky.

'This feeling...so ominous...what's happening?' he would deny the fact he felt a shiver of apprehension that went down his spine, he was Behemoth, Leader of the 34th Division that worked directly under the current Great Demon Lord, he was the one that fought in the Great War so long ago. He held great pride in the fact he could stare into the face of adversity and laugh, then proceed to kick as much ass as he could before getting stomped in the ground. He wasn't afraid of anything...

Well there was one thing, than again anyone would be afraid to fight that monstrosity.

His thoughts were interrupted when he felt something, a pulse, a small miniscule pulse of power, but it was there nonetheless and when he felt the sheer essence of it Behemoth's eyes widened in alarm. Snapping his head up he looked to see the un-moving body of Tatsumi Oga impaled on the arm of his only son.

And suddenly, for some inexplicable reason, Behemoth felt, for the first time in centuries, a cold chill of fear run throughout his body.

'What...what is that?'

XxX

Within the depths of Tatsumi Oga's mind, one would find it to be nothing more than a empty abyss. A realm void of all life and light, only the coldness of the dark was all that awaited anyone that went into the mind of Tatsumi Oga. It was not a place for the weak willed or those faint of heart, because in that very darkness lurked an entity that would make even the Gods fall.

And in that darkness, where it was the strongest, that one could find Tatsumi struggling at his current predicament, clutching at his skull while gnashing his teeth.

'I...I hate this! Why! Why am I not strong enough to beat these clowns! What is it I'm lacking!? What do I need to do to end this?! What is it...what is it...WHAT CAN I DO TO KILL THESE FUCKERS!?' he screamed in his mind, echoing in the dark abyss of his mind. It wasn't like he actually expected anything to happen, but it was something he did out of pure frustration with himself.

He hated being weak, he absolutely loathed being weak. He'd grown up trying to get strong so he never had to rely on anyone else, but his own strength. His sister taught him that through her actions, and he learned through trial and error with every fight he got into. He relied on his own fists and the strength he was born with, not on others because relying on other people was either a sign of weakness or it would lead them to getting hurt.

And the latter had just come to pass for his "Wife" and the "Mother" of his son Beelze.

'Fuck...fuck...fuck...fuck fuck fuckfuckfuckfuckFUCKFUCK!' repeating this mantra, Tatsumi opened his eyes to glare out at the darkness around him.

''FUUCCCCCCKKKKK!'' he screamed, he yelled for what felt like hours, he poured out all his frustrations, his anger until his throat bled. It was all he could do in this situation, and as the silence followed he was left there feeling completely empty, broken, defeated for the first time in his whole life. It wasn't like he was expecting anything when he screamed, he just needed the solace in venting his frustrations. However even that didn't work as the images of what was happening outside flashed painfully, reminding him of exactly what was happening. Reminding him of his complete failure as both a man and as a father.

And in that moment...as Tatsumi fell to his knees for the very time time, as his heart fell into despair over his weakness.

Something happened...

Something in the darkness stirred...

As Tatsumi's eyes closed, losing himself in his own anguish, something was happening to the young man.

Within the darkness of his mind, something was released, answering the call of Tatsumi's own despair, feeding on his anguish and soul-wrenching agony.

'Why...am I...this weak?'

'It's because of your mortality...'

Suddenly, Tatsumi froze at the sound of this voice, awakening to find himself in the darkness still, but this darkness felt so much more alive. Yet he could not stand up, he was completely frozen in place from the voice he just heard. Never...NEVER in all of his life had he heard such a voice as this. It was entirely something different, it carried a level of confidence that seemed otherworldly. A cold edge that was sharper than any sword, but the biggest thing he noted from this voice was, the power in it.

The sheer magnitude of power in this voice spoke degree's that whoever or whatever this was, it was leagues beyond anything Tatsumi had ever known or would ever come to understand. It made his power feel like a flickering flame to a galactic supernova. Their was simply no comparison, for the power was just far too potent for Tatsumi too ignore.

It was staggering, making it hard for him to even twitch a muscle let alone breathe. It truly felt as if the sheer presence of this entity could and would be able to wipe his existence clean without any effort at all. Before Tatsumi even realized it, his own body was trembling in trepidation and in yet another emotion that was nearly foreign to him, but he knew what it was.

Fear...

Something about it just made every survival instinct honed through every fight he's been in told him to run, run now! But above all else, he could not run, he would not run away! He'd sooner die than run with his tail between his legs, maybe he was being foolish and stubborn, but he wasn't a bitch that would run in the face of something that was beyond his reach in power. It was simply not his way.

He'd stand his ground even if it meant death.

And as if he was reading his mind, which could very well be the case, the voice spoke again, echoing all around Tatsumi. 'Hm...perhaps there is hope for you yet...you don't intend to die here, do you? Do you intend to let that little insect do all that he's done go unpunished? All he's done to Hilda, your friends, even your son?'

Tatsumi's eyes narrowed within the darkness of wherever he was. His beady black eyes gleamed in a manner that spoke of nothing, but absolute resolve and defiance. Even as he despair, he still found it in himself to fight on despite how little no chance he had against his enemies.

'No...' he replied in kind.

'Will you continue to kneel there like a beaten dog, doing nothing as these insects threaten to take all that you have gained? Will you let your friends be killed? Let Beel be killed? Will you stand there, cowering and let Hilda's sacrifice...be for nothing?!'

'NO!' shouting out in spite, his hands went up and began clenching onto his skull, nails digging and piercing through flesh as he tried to burn such things from his mind.

'Are you going to stand there and watch as that low piece of demonic trash kills your son and his mother! WILL YOU?!'

Tatsumi's eyes snapped open, but instead of his usually beady black eyes, there was only the whites of his eyes at this point. Blood ran down from his scalp as he looked up and unleashed his answer.

'NOOOOOOOO!' and in that scream, Tatsumi's body suddenly exploded with life. As his scream turned deeper, rougher and louder by the second and in that moment the darkness that encompassed his mind began to swirl with life. Coming to life with a purpose the darkness began to spin all around Tatsumi before it froze for a moment.

Before it all converged on Tatsumi, swallowing him whole in a sea of pure darkness...

'Good, then embrace it. Accept your hatred, your rage, your anger, let it fuel you and kill that insect who dared to hurt them! KILL. THEM. ALL!'

And in that moment, something truly monstrous awakened from within the depths of Oga Tatsumi's soul.

XxX

In contrast to Tatsumi's mind, atop the rooftop of Akumano Academy, Jabberwock held the unresponsive Oga impaled on his arm with little to no effort at all. Blood dripped from his beaten and mutilated body as his head hung low, his defeated body for all too see and yet in Jabberwock's eyes he only felt as if he had just broken a toy and was just bored now.

''Hmph, such a waste. Now you see why I find these maggots to be worthless, father.'' Jabberwock said to Behemoth who remained unresponsive as he stared behind his glasses, his eyes staring coolly from the sky and as Tatsumi's corpse with an expression of trepidation. A bead of sweat could have been noticed as he was the only one that could feel what was really happening.

'No doubt about it, the pulses are growing stronger and it's coming from the human. What is that...' his sense of growing alarm was justified since he could tell from first glance that Tatsumi Oga was most definitely dead, beside the fact his son had impaled his weak mortal body completely through and ruptured more than a few vital organs. He wasn't in contact with Beelzebub so he didn't have the demonic enhancements he once had.

At the moment he was impaled Tatsumi Oga was just a normal human, albeit still a powerful one in his own right, but still a human.

So that begged to question, what was happening?

Feeling the wind start to pick up, he briefly looked up and his eyes narrowed even more when he saw the black clouds begin to completely cover the sky, blocking out the the full moon in all it's splendor. Soon after, a deep rumble echoed across the clouds before a first bolt of lightning streaked across the sky.

'Somethings coming...I must be wary.' Behemoth thought only to himself before turning his gaze back to what was happening before him. Only now he was tense and ready to spring into action at the slightest change in direction. He let his gaze wander to his son who in turn threw off Tatsumi's corpse and turned towards the spawn of his very own Lord.

''Well, Prince Beelzebub, I hope after this you won't be making any more foolish choices in your life. This is what happens to those who defy the will of those vastly superior to them. Keep this in mind for the next contractor that you find.'' Jabberwock spat as he walked toward the motionless little baby. It was about time to take the little brat back to his father so they could find him another contractor.

But who wasn't to say he couldn't rough up the little bastard, he had no qualms with killing children, he had done so many times before in his life. There was no difference to him and right now he was just a little bit pissed with the little shit, but just as he was within hands reach of Beelzebub.

''Don't you dare touch him, you fucker!'' suddenly Tojo charging him, despite his own wounds, his fist was raised and his eyes were lit aflame with absolute murderous intent. He just watched the only other man he had ever known stand up to him and even defeat him get killed by this fish faced bastard! There was absolutely no way he would let that go, Oga was his friend through battle and he could not, would not allow this to go unpunished! But just as he came rushing in, his fist impacted Jabberwock's left cheek, but instead of expecting him to be sent flying or even knocked down.

He didn't even react...

''W-what the?'' to say Tojo was stupefied would be an understatement, he put all his strength in that punch, but this guy didn't even flinch? Just what the hell was he made of?

''Oi...'' Jabberwock spoke glancing at him with a look that spoke volumes of his killing intent. ''I'm bored dealing with you maggots, and I've already killed your strongest one here. I've had my fun, and still you come after me? Fine then, I won't hold back anymore, you pathetic mortal!'' and before Tojou even realized it Jabberwock spun around and his fist moved far faster than he'd ever seen it move before.

Faster than he could blink, the demons fist slammed into his jaw no doubt breaking it before his body was sent flying off the Clock Tower where it slammed through the building next to it.

''And that's another one down.'' Jabberwock stated before he turned and began walking toward Beelzebub, but the little baby could only stare at the body of his father. Tears welling up in his eyes as he saw both bodies of his mother and father down, broken and beaten. It was a sight he never would have thought he would ever see in his life.

Mother and Father were always strong around him, insurmountable and exceptionally evil. They were the ones he believed in, more than any of his blood related family just because he loved his mother and looked up to his human-father. To aspire to be just like him, that was his goal, it was his father that taught him how to be a man and it was his mother that helped take care of him.

He loved them both dearly and seeing them like that...

'Remember baby Beel...men don't freak out crying, you'll be made fun of.' he took the words of his father to heart as he finally tore his gaze up to see Jabberwock standing infront of him. Glaring down at him with a grin, but that in itself was anything but pleasant.

''Aw, not going to cry? Oh well, you'll be crying by the time I'm done with you!'' he said just before he went to grab Beelze's head. But just as he was about to grab the little boy's head and give him a lashing of a lifetime. He saw something that confused him, the boy's eyes widened in something akin to shock, or just as shocked as a baby could get.

Then he spoke a single word that made him freeze...

''Dada...?''

Than in a brilliant flash of red, a bolt of pure crimson struck down from the Heavens.

And that's when he heard his father screaming...

''JABBERWOCK GET OUT OF THERE!''

'Wha-'

That's when he felt it, another presence was there with him, he had been so blinded by his own anger and blood lust that he didn't even pick up on it until his father's scream woke him from his stupor. And that's when he noticed it, a hand was gripping onto his wrist. However it was no normal hand by any means, oh no, it wasn't of human origin by any stretch of the imagination.

It was jet black with glowing red arcane symbols circling around the entire length of the arm. The hand itself was a menacing massive hand with 5 razor sharp claws that were once fingers. Taking that moment, Jabberwock's red eyes slowly traveled up the arm only to see to his growing disgust and horror, he saw the blackness spreading like it had a life of it's own. It conformed and converged from human flesh and into a black metallic sheen, and the arcane sigils kept spiraling and spreading as the black mass began to cover the body, glowing and thrumming with a power he could not even begin to fathom.

''Oi..."

In a sharp intake of breath, Jabberwock's eyes snapped up to see the face of the one who stopped him and what he saw made his eyes tremble in both shock and apprehension.

It was the human, at least it looked like the human Tatsumi Oga. However his once beaten and broken body was regenerating at high speed, even the hole he'd made was stitching itself back together, organs, bone and muscle, all of it was growing back in seconds. But it was what was happening to him that shook Jabberwock to the core, the black mass that was spreading across his body moved as if it was alive, moving at the beck and call of it's master. And he could only look into the face of the one whom he thought he had killed.

And when he saw his face, Jabberwock knew the true meaning of what a demon was supposed to look like.

The black mass was covering most of his neck and half of his face and he was greeted to the sight of one eye, which wasn't covered by the black mass, glowing a baleful crimson with a black slit going down the middle while the whites of his eyes began to meld into wisps of ebony. The other half of his face was the visage of a snarling beast or monster, black skin shined with an otherworldly shine as the mouth that was covered revealed sharp fangs protruding from the lower and upper lip. A single red arcane line went directly down the eye and over the scalp that covered half of Tatsumi's hair. And the eye on this side of the face changed drastically as well, the whites of his eye turned into a dark crimson while an iris that hadn't been there before was a dark violet while his pupil had become a black slit going down the middle.

And the black mass was slowly starting to take over the rest of his face and body.

''W-w-what...the hell...are you?'' that was all Jabberwock could say in that moment, but Tatsumi's eyes merely stared back into his own, a raw emotion of pure cold fury flashed in his mismatched eyes. Jabberwock had to bite back a hiss of pain when Tatsumi's grip strengthened to such an ungodly level.

"You...hurt them...you hurt her...you hurt my son...'' Tatsumi seemed to ignore Jabberwock's last question, and was speaking more in a drawled out hollowed tone. His voice was no longer the same, it was becoming deeper and more conformed as the seconds ticked by.

''You...hurt my boy...my friends...my Hilda!'' it was at that moment his eyes turned completely white with rage.

''Your life...is forfeit...You. Are. Dead!'' and in the blink of an eye Tatsumi grabbed hold of Jabberwocks arm in a vice like grip and in a twitch of his wrist proceeded to tear off his entire limb. The red life giving liquid sprayed forth from both the dismembered limb and the stump of where Jabberwock's arm used to be. It shot out everywhere, staining Tatsumi's blackening body crimson, and all over the ground around them.

It took only a moment for the pain to register as the son of Behemoth's eyes quivered in building shock from the stump his arm used to be before moving to his old, that was still twitching from having the last of it's nerve signals torn apart.

''AAAAAAAAAAAAAAAAAAAAAHHHHHHHHHHHHHHHHHH!'' his other hand would have went to clutching at the stump in a desperate vain attempt to stop the bleeding. But before he could even blink, a black blur moved toward his other arm. His body jerked in response causing his eyes to widen further in alarm before he turned to only see the malevolent visage of a completely black faced demon snarling down at him.

No, this was no demon.

This was a monster.

''AAAAHHHH!'' He screamed again as Tatsumi tore off his other arm and tossed it aside, ignoring the blood splattering against the floor and staining his body dark crimson. And left there, falling to his knees, Jabberwock, son of the Legendary Behemoth could only stare into the eyes of his killer with only one thought running through his head.

'What have I unleashed...' then a clawed hand clenched around his entire skull, Tatsumi's expression remained completely impassive through the entire process. Jabberwock was left helpless while being held in the air by his hand, his arms were gone, his body refused to respond, his lefs didn't so much as budge no matter how much he tried to move them. And soon enough, as the claws of his enemy began to dig into his flesh and skull he felt a presence flash toward him.

''Let go of my son, Tatsumi Oga!'' and he only shifted his head slightly to see the old man, Behemoth, clutching on his hand stopping him from turning Jabberwock's skull into a gory mess. But the old man was anything but aloof at this point, his entire body screamed demonic power and his once black beady eyes were gone and all that was there was eyes that were the purest of crimson.

But Tatsumi was far too gone, the power coming off this old man didn't deter him in the slightest. The only thing that happened was his baleful white orbs narrowing on the old bastard for trying to stop him, and then he lifted his other hand and pointed a single claw toward the old man on his left.

''...All those that hurt Beelze, my friends...and Hilda...DIES!" and in that second, Tatsumi's power spiked to such a degree that it made Behemoth's eyes widen in shock and it was then he saw a spark of red lightning at the tip of Tatsumi's finger. Only for a black and red orb to grow and expand at the tip of his finger.

Looking up, he was greeted to only the sight of a pair of blazing white eyes staring at him, through him and piercing his very old demonic soul.

''DIE!''

And in the blink of an eye the orb exploded, releasing a shockwave upon it's initial release causing the entire rooftop of the Clock Tower to crack. Yet the beam didn't stop as it expanded into the skyline causing sonic booms as it traveled into the distant mountain ranges of the west.

….

Then the Earth shook as that entire mountain range exploded in a massive pillar of black and red demonic energy, the pillar only grew and expanded, consuming all the wildlife in the general vicinity as it pierced through the black sky and Earth's atmosphere.

Seemingly satisfied with his work, Tatsumi instinctively canceled his attack and seeing the old man was nowhere in sight turned his gaze back on the helpless General of the 34th Division of the Demon Kings army. And it was then did Tatsumi let out a feral snarl before he squeezed causing his claws to dig into Jabberwock's skull without restraint. The demon tried, oh he tried to stop him, his muffled screams were pretty evident, but nothing would stop Tatsumi at this point.

These bastards hurt them, therefore they would receive no mercy from him!

And in a twitch of his wrist Jabberwocks head exploded into a gory mess of blood, bone and brain matter, staining Tatsumi's claw and lower body, but it didn't deter the human turned monster. If anything he seemed pleased with the result.

But he wanted more...

'Kill them! Kill them all! MAKE THEM ALL SUFFER!'

The voice within his head demanded for more blood to be spilled, but just as he was about to act on that desire he was stopped when he felt a tug on his leg.

''Dada?''

XxX

He couldn't believe what he was seeing...

Takayuki Furuichi, age 16, could only stare in complete shock as the events of the battle unfolded before him. He and Lamia, assistant doctor to the once Imperial Doctor Furcas Rachmaninoff were currently the only two that were able to witness the battle with Oga and Tojou against the General of the 34th Division Jabberwock.

And it was a living nightmare...

Watching the two strongest people he ever knew get wasted by the son of Behemoth had been an experience he didn't want to see again. Seeing them both beaten and broken by the demon had been a sight he was not soon forget.

But if things couldn't have gotten any worse, they did, when he saw Jabberwock impale Oga with his entire arm, straight through his abdomen and all the way through the back. Upon seeing that, seeing all that blood, Oga's blood, be spilled all across the Clock Tower had paralyzed Furuichi on the spot.

Tatsumi Oga was his best friend, ever since they were in the fifth grade, and he had come to see Oga as someone to be insurmountable, unbeatable even. A monster of a guy that couldn't ever be defeated by any normal means, and even when he was introduced into the supernatural world, that belief still held true. He'd seen Oga do the impossible many times before, crazy things that went beyond the human bodies limits, but even he knew, deep down in his mind, Oga wouldn't survive from something like being impaled completely through like that, and it was why he was left frozen in place thinking his best friend was going to die. And that only increased as Oga was tossed aside, as if he were a corpse at this point, which was pretty much the case at that point.

But his concern grew when he saw Jabberwock head toward the motionless Baby Beel. Lamia was trying to do anything to reach him in time, but he had to hold her back because he knew there was no way she'd survive. Jabberwock was out for blood and he couldn't let Lamia go out there and get slaughtered.

For a moment he felt hope when Tojou got back up and tried to stop him, but the demon just took his strongest punch without flinching. Then proceeded to punch Tojou so hard he was sent slamming into the building they were currently on. The impact had been strong as they felt the entire building shake from it, and for a moment he as worried it would collapse. But just as it was gonna get worse when Jabberowck was about to reach for Beel, something happened.

Something absolutely terrifying occurred...

Thunder roared throughout the sky, reminding him of the storm that strangely appeared above them. The rumbling waves of lightning streaked across the sky and struck down all across the city, lightning up the entire region in brilliant flashes of blue. But when the rumbling got closer and it all went dark.

He heard Behemoth, the old man scream, just before a single bolt tore through the Heavens, a red lightning bolt struck the Clock Tower.

And when it ended Furuichi saw something had stopped Jabberwock from reaching Beelzebub, and he wouldn't have known who it was if he hadn't heard Lamia speak it's name.

''Oga..." When he had turned toward her for confirmation his eyes had widened when he saw the state she was in. She was a mess, her body was trembling in unrestrained primal instinctual terror, her skin was pale and she was tearing up, as if the sight she was seeing was beyond any kind of horror she could ever witness. He had never seen Lamia so petrified until that moment, she was trembling like a leaf in a hurricane and was sweating profusely. It was like she was able to sense or see something he couldn't and it confused him immensely.

But before he could question her he heard a blood curdling scream and he turned only to see the unidentified Oga, the figure of his supposed dead best friend, rip off Jabberwocks arm all the way from the shoulder! And what followed was a scene that he thought he'd only see in scary movies as the figure proceeded to tear off Jabberwocks other arm, and begin to crush his head like a watermelon.

But then Behemoth intervened, but that didn't stop the monster, infact it was then Furuichi had seen what had become of his friend when the figure hit the Great Demon with a spell of sorts that blasted clear across the cities skyline and into the mountain range hundreds of miles away from the city. Only for that entire mountain range to explode into a giant expanding pillar of black and red energy.

The shockwave that followed from the explosion shook the entire region, causing many of the less than stable buildings across the city to fall while every single window in the city shattered. It nearly blew them off if he and Lamia hadn't hit the deck soon enough. But the light of the explosion had lit up the scene for all eyes to see.

And what Furuichi saw on that Clock Tower had made his blood run cold, in place of his old friend was a black skinned humanoid with glowing red arcane symbols running all over his body. Blood was splattered all over his body and the Clock Tower rooftop, his white large eyes filled with untold amounts of fury had made Furuichi nearly lose all self control of his bladder.

'W-what is that thing!?'

It was then someone appeared infront of them so their eyes would no longer see the terror that Tatsumi had become, and when he looked to see who it was, Furuichi was surprised to see it was none other than Zenjūrō Saotome, the black haired man that was their teacher in Saint Ishiyama Academy. But he noticed that his back was to them and slung over his shoulder was a very broken and very defeated Tojou.

That's when he heard the older man speak. ''Remember what you have seen here today, Takayuki Furuichi. Burn the image of what Tatsumi has become into your very eyes...because he will never be same.'' with that said, the older man vanished faster than Furuichi could blink. When he did blink though he and the shellshocked Lamia were left frozen when they saw Oga crush Jabberwock's head like a grape before he seemingly turn in their direction, but before he could at on whatever was pushing forth they both saw him stop.

And the reason he stopped?

Was because of the crying little boy tugging at his leg.

Concern for the boy's well being consumed the two and they could only scream for the boy's name! ''BEELZE!''

XxX

''Dada?''

Tatsumi's whole body stopped when he heard that voice, it was a voice that he knew all too well. It belonged to the very boy whom had changed his entire life, the very boy who brought, alongside a certain blond demoness, a joy into his life that he had never felt before. Slowly, he turned to look down at his leg to see the wide green eyes of his son.

Staring at him, Tatsumi noticed the damage on his little body and it only cemented his own self-loathing for allowing the boy to be hurt on his watch. He was supposed to be protecting him, raising him as his own, but this only proved to him that he was only putting Beelze in danger.

'No more...I won't allow anyone to hurt them again...' bending down to a knee, he picked up Beelze, his son, completely ignoring the fact the black mass that covered his body was seeping back into his rejuvenated flesh. All that remained of the black mass was half of his face which still held half of the demonic visage he had in his battle with Jabberwock and Behemoth. He didn't care for the damage that was around him, not for the corpse of Jabberwock at his feet. Holding his son, Tatsumi wordlessly turned toward Hildegarde's body and made his way toward her. His footsteps were loud and strong, but he didn't care.

The well being of his family was all that mattered to him at this point.

Reaching her, Tatsumi kneeled down before setting Beelze on the ground beside her. Taking his hands, he pushed aside her long blonde bangs behind her left ear and took a moment to take in the damage done to her. Her clothing was in tatters, there was more than a couple of bruises and whelps along her body, and the sheer look exhaustion in her expression was all needed to know.

'She put up with all the torture they could dish and didn't give in, even when they set that strange fire on her...must you keep reminding me why I...' stopping himself from that train of thought, he went to her face and cupped her cheek in hand. For a moment he just stared down at her, and then at Beelze before tearing his gaze back to her.

''Hilda...I won't...I will not let this happen again...I give you my word.''

Soon enough, his body began to fall, his exhaustion began to take hold, but just as the darkness began to consume him. He saw Hilda's eyes creak open to meet his gaze, and in that moment she let a true smile come upon her face.

'And I to you...my King.'

Prologue Chapter completed!

Holy. Crap. Holy crapola my FINGERS! My first story on this site and it just had to be such a long chapter. Why! My fingers are bleeding! :(

This actually took a whole month for me to make, not just this prologue, but the basis of the entire plot, the origin of Tatsumi's powers, of what the future will bring after what he's done. This took a lot of time and to meld the Beelzebub universe and the Highschool DxD verse for what I plan to do was hard!

But I think it'll be worth it in the end.

Anyway, the reason for Oga's sudden transformation is due to a number of reasons which I cannot say beyond that you will need to read future chapters to know what has happened to him.

The form he took was the very same as Greed's Ultimate Shield Form, only instead of red lines he had red arcane symbols spread all over his body, which those themselves have a reason for being there. I also made Demons FAR stronger than they are in the Beelzebub universe which was why Jabberwock was unaffected by Tojou's punch, and was able to send him flying when he got "serious".

I think that's it, and if Tatsumi did come off as too blaringly OC than it's because the situation he was just put through has ultimately changed him.

Tell me how I did, I plan to focus solely on this story while I catch up with the light novel for research material.

Have a good day everyone!