Note: I don't own Hyperdimension Neptunia or it characters, only OC.

Change me – part 1 : The Bloody Azure

As the man engulf in bright azure flame, everyone cover their eyes due it blinding light, even the monsters are not exception. Upon the flame disperse, that young man appearances change.

His hair that is black turn into azure color and his side hair stand up, make it like some kind of beast ears. His eyes also turn into crimson. His clothes turn into a black tight suit with azure line, his hands covered by scaled and clawed gauntlet with sharp part on side and his lower legs covered by hard scaled armor with sharp part in back of it. His clawed fingers moving slowly but intimidating like ready to tear apart anything.

"RrrrrAAAAAgggghhhhh... hah... hah..."

He seems like pretty exhausting somehow but quickly recovered from his sudden roaring. His eyes meet the monsters eyes like predator saw it target. Everyone still kinda shock of young man's sudden transformation. Their shock are normal, because until now no CPU's even saw a single male CPU exist.

"Kill... before killed...!"

"...!"

The CPU copies monsters seem become more intimidated when he said that words. They're suddenly attack him together like they're desperate to survive. As those fakes slash him, they don't even think that he was catch both of weapons bare-handed like it was nothing.

"You're... underestimated me..."

He thrown off the weapon and quickly connect it by landing a powerful punch to both of them and thrown them out to wall. He forced to give them some quite powerful beat downs. In other hands, the real ones watching him fight their fakes with such awe.

"We can't even damage them fully but he can do better. Hey Plutia... Plutia?"

Neptune tries to call Plutia in her Sadie form but she's not heard her. She was too focusing to watching him fight. If it was normal, Neptune will not too much try to call her, but no. Her expressions when watching him are... very lustful and strangely ecstasy.

"Ah~~ his punches... his kicks... his way of fight... why... why I feel really good just for watching him? Ah~~ what with this feeling I have~?"

Her words really freak out Neptune and Nepgear who just recovered from her things before. One thing that they know is when Sadie like that is when she wants to punish someone and such. And right now, she was more worse, like a bitch in heat.

Back to him, he was just finishing his beat up those fakes, who's now in not good shape. The F-Neptune tries to strike one last chance but sadly thanks that her slash is not too fast, he can catch it again but this time he tighten his grip and the sword break apart into peace. Not stopping, using his other hand he spear out his hand toward the fake body and pierce it.

A good amount of blood coming out from fake mouth and dirtied some part of his body. He's saw it for while and slowly raise the fake body, before he grab it with his other hands split it body apart like a kid reap out a doll. He then threw the half part of F-Neptune body aside and unfortunately it toward real one. The real Neptune who looks her fake body who split apart try her hardest to not puke out for seeing it. In other hand, Nepgear puke out again.

"Ugh... I just warn you before but you still keep going... Are you really like goring stuff? Ugh..." Neptune said.

"Hah..."

She only got one breathing respond from him. His body mostly dirtied by that monster blood but he was still calm like it was normal to him. He then looks toward F-Plutia who seems from it expression... is really terrified.

But he suddenly grabs his head and panting continuously like something wrong with him. His vision seems not focus due some reason.

"(Not good... the time limit nearly up... I must finish this... fast!)"

He looks toward the last fake, who tries to escape by fly. But it escape was fail when a blade whip seems catch it leg.

"No no~~ the fake me will not getting away anywhere~~ you must face your punishment~~!"

From her words, she seems like the one who want to do it, but she do something different, she throw it toward that young man.

"Take care of fake-me, okay~~" she said.

"...Thanks..."

When answering, he reaches his belt and once again pulls the part he do before.

{VIOLENT PUNISH}

He readied his right arm as some sort of energy gathered on his gauntlet's sharp part and become some kind of energy blade. As the fake fly toward him with full speed, he jump out toward it and swing his arm to it. He then land safely but the fake landed as it body split apart up-down.

"AAAAAAAAAA!"

He let out a howl, like give a sign as the battle is over. The corpses of those monsters also turn into black stink goo. Meanwhile, Neptune let out sigh of relief as thing was over.

"Finally... it's done," she reverts back to normal form, "really mister! As much you like gore stuff, please hold down a little, will ya? I probably can hold it but Nep Jr. here are not tough as me!"

"Ugh..." Nepgear also revert back, "sorry Sis. I'm not too good on that stuff ugh..."

"There-there my adorable little sister. Let it go to make it better, but make sure it not let go to me if you want to puke," said Neptune.

As the Planeptune sister do their own sisterly routine, Plutia looks toward the young man who strangely not even move from his place before.

"Oh my~~ When I see this close," she close by, "you're quite cute too. Maybe I will like you for something."

"..."

"Hm? What's wrong? Cat got your tongue?"

"..."

He was not responding to her, all he does is just stand there. But strangely, his body seems to be shacking.

"(Shit... shit, shit, SHIT! I must get away from them before—)"

Before he can finish his though, his vision becomes blurry. His whole body is shacking as he was tried to hold something inside him. He was tried to resist it, but... his body was give up.

"A..."

His hands hand down and his body posture like a lifeless body. His eyes... who strangely lost it light look forward and unfortunately Nepgear is the one he see.

"Oi, are you listen to me—"

"RAAAAAAAGGGGHHHHHHHH!"

Without warning, he let out roar that push back Plutia to side. In a sec, he disappears from his place. Thanks to previous roar, Neptune and Nepgear snap out from their own world and look toward the source of roar, where there's nothing there.

"Huh? I thought I hear someone roaring there?" said Nepgear.

"Me too," Neptune saw Plutia condition, "P-Plutia!? What's just happen to you!?"

Neptune walks toward Plutia who seems sit to ground due being pushed back before. Where what Neptune do is actually leave her little sister alone and make her a very easy target. Nepgear just want to follow her sister to Plutia, but she doesn't realize pair of crimson eyes behind her.

"Huh—"

It's too late when she realizes it. Her body was being gripped hard, make her can't move. She wants to scream out but she can't let out her voice as she feels something piercing her neck.

"A...a..."

"Huh? What's wrong Nep J— Nep Jr!"

Neptune vision feels in horror when she saw her little sister. She was being sucked in neck by that transformed young man like a certain blood-sucker. But strangely, no blood come out from place where she being bitten. Even if not really visible, one can barely see something else that was suck out from Nepgear body.

"STOP IT!"

That sound is not Neptune. That sound belongs to other person, who being forgotten for a while. Yes, it was Rei sound. For very first time since her life and not counted when she was in her crazy personality, she was scream out aloud. She herself doesn't know why she screams out like that. If she can describe it, it was like part of her doesn't like it.

Like some kind of trigger, that young man's lifeless crimson eyes regain it light back. He saw Rei scream out to him, and he forced to look to what he does, where he only got shocked. He let go Nepgear who just lost her conscious and fortunately Neptune move fast as she transform right away and catch her body.

That young man takes few steps back as he still shock of what he do. Something he tries to resist all this time but sadly he failed and the outcome was right in front of him.

"...dammit..."

He forced to jump out to wall and jump again and again until he reach a hole where the light come from and get away from there. In other hands, Neptune actually wants to chase him but she more worried about her sister condition.

"Let's go Plutia. We must go back and ask Histy about Nepgear condition," she said.

"Yes-yes, I coming... (Fufu~~ I actually interest to him, but ho well, there's always second time)," said Sadie.

And they're flying out from that place, and actually leave behind Rei who still in her deep thought about what she just do before.

"Why... I scream like that? I don't know him, even if he has same appearance as him, there's no way he was him. The only way human can be ageless and not aging is to become... CPU. But I see myself... that place, the sight that showing his death... but why? Why I feel he was—"

She suddenly feels a jolt inside her head. It was hurt and it was like force her to remember something. A certain memory in past flashed on her head as she remember it.

The image in the past, the time right after she was destroys her own nation with her own power. The time right before she lost conscious after let out that much power. The scene, where in front of her stands a figure, looking toward her. And that figure—

—engulf by azure flame.

Few Hours later, Planeptune's Basilicom

Few hours later, Neptune and Plutia where they're in normal form, waiting Histoire from complete her diagnose about Nepgear condition. Few hours of silence, where it was very rare for Neptune to be that silence.

"Come one Author. I maybe can be annoying loud girl but I also can be big Sis that very worrisome to her little sister condion," she said bit angry.

[Well, my bad. Forget about what I just said.]

And not for long, Histy get out from room where Nepgear rest. Neptune standing up suddenly and come toward her with worried face.

"Hey-hey, Histy. Is my Nep Jr. will be okay? There's nothing wrong, right? She wouldn't become a blood-sucking monster, right?" said Neptune.

"Don't worry Neptune. She is fine and for last question that was unnecessary. She was just lost her conscious after most of her Share energy forced to get out from her," Histy explains.

"Forced out? But how?"

"From your story, I can said that young man you encounter is the one who responsible for it."

"Really!? That mean he was bad guy all along!"

"But you said that he help you defeat group of monsters that attack your Planeptune."

"Um... well, he is..."

"Hah... Listen, after you do some job and increase the Share, Nepgear will wake up eventually. It was the fasted way for make her Share energy that lost."

"Uh... more work? I really tired right now and I must work again? If this not for Nep Jr. I'll not do it."

"Please also do it for sake of your own nation! Ehem!" she clear her voice, "now let's continue the talk now. I want to talk about that young man you encounter, and I can sure that I found why he can also transform like CPU."

Meanwhile, Somewhere in Lastation

A shadow moving really fast, leaping from building to other building until it reaches an abandoned building and get inside of it. It was that previous transformed young man that seems exhaust due how long he go to reach his destination right now.

"Hah... hah... hah..."

After finally reach a certain part of that building, he walk slowly to old sofa that strangely was there and fall his butt to it. When his butt hit the sofa, he engulfs by bright light and return to his normal form.

"Hah... I... do it again..."

He was feeling really bad when remember it. It was third time he does it after previously two he do was really long time ago. He actually found the way to resist it and control it yet whatever he transforming, the effect will decrease fairly that he only able to be in that form for only few minutes. It was... thanks to what attach to his waist right now.

"Hah... I'm beat..."

He was looking toward moon that shines in the middle of darkness of night. Somehow, looking to moon can calm his mind. It was something he does normally when his mind was not calm before. Something he do... in the past.

"What happen, and then it was happen. I can't return back to the past. Even that mean... I must stay away from the one I care about."

As the wind blow gently, his eyes slowly closing. And he asleep, waiting for next day to come again. The time, where's his next hunt begin.