Invader From Another Demension Chapter 1: 01 The Nightmare Begins (Part 1), an Invader Zim + Hyperdimension Neptunia Crossover fanfic

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In Planetune's Basilicom the door to the CPU's personal chambers creaked open. A single pink iris could be seen scouting the empty hallway for anything out of place. Satisfied with the lack of any living thing in the hallway the door slowly opened.

Revealing a very peculiar sight, even for someone as weird as Neptune.

The CPU was decked out from head to toe in full riot police gear. Instead of a plastic shield she cared a cane in one hand and a plot device in the other. The device in Neptune's right hand gave off a constant, insistent, beeping as Neptune pointed it up and down the hall.

Now confident that there was nothing in the hallway she took her first step.

And fell into a dimensional tear.

"I'MMMMMM BBBBLLLLLAAAAASSSSTTTTTTIIIINNNNNGGGGG OOOOOFFFFFFFFFFFFF AAAAAAGGGGGGGGAAAAAAAAIIIIIIIIIINNNNNnnnn…n..!"

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"Everyone we have code 001-NEPTUNE."

As Histoire's voice came across the intercom many of the workers in the building let out an exacerbated sigh at the common and at this point expected code phrase. None were distressed more than a pink haired girl in the basement, Neptune's younger sister Nepgear.

"No," depression rolled off the young woman in pitch, black, depressing waves. "This is all my fault. Why didn't it work? Why can't I do anything right?!"

NEPGEAR GAINED THE BAD SISTER AFINITY

"What?! I thought we got rid of those!"

Nepgear began to grow hysterical.

"Who said that?!

At the sound of an unknown voice, Nepgear quickly grew alarmed and confused.

"What?"

Now even more confused, Nepgear spun around. She searched around her lab for the Narrator as she subtly reached over to grab an ominous purple sword that had been gathering dust on one of the work benches for several years.

"That voice, it somehow knows exactly what I'm doing!"

The young-looking girl shouted into thin air.

"And 'Narrator,' what do you think this is some sort of game!"

Asked the video game character.

'This 'Narrator' must be the cause of Neptune's disappearance. If something caused a tear in fabric of space-time than it could explain why Neptune's anomaly detector didn't work.'

Nepgear's thoughts came to a screeching halt as she realized the Narrator was repeating out loud what she had been thinking. Word for word.

"O-Okay, WHOEVER YOU ARE! Whatever you did to Neptune, I-I'll make you sorry!"

Calm down Nepgear, threatening is unbecoming of you. Why don't we just have a quick chat, me to you. But first let us get rid of that thing your holding.

"What, Gehaburn?"

The sword that was in her hands disappeared in an instant along with every single weapon and tool in the lab. Looking to escape from this seemingly all-powerful being Nepgear took a single step towards the door only to find that it and all the windows in her lab had been replaced with orange missing-texture-squares.

Horrible thing, I don't know how you can even touch that.

Said the narrator in a calm and collected tone.

Sorry about this but the last person I narrated before I came under the service of your sister killed himself in an attempt to escape my narration and we can't have that can we. Not that it did him any good.

The narrator while not possessing any lungs seemed to sigh as he continued talking to his captive audience.

Now that we got that out of the way I will get straight to business. Neptune is gone, unlike every other multiverse-adventure that she has had there is no way back this time. This, unfortunately, means that the spot of the protagonist for this game falls squarely in your hands Stanley.

"Stanley?" Asked the scared and newly christened CPU of Planetune.

Oh look at that, you had me thinking about him, my bad. It was just a slip of the tongue I assure you.

"And wait, you said you talked to my sister before?"

Yes, quite often actually. She was by far one of my more favorite people to narrate, right after that one movie I narrated for. I think it had something to do with space hitchhikers and the number forty-two?

"Neptune," Nepgear said in complete deadpan.

Right Neptune, lovely lady. She always listened to me whenever I gave her advice. Never straying from the story. Unlike Stanley she trusted me to lead her to the good ending. Now enough about him, where was I?

The sound of shuffling paper could be heard coming from nowhere but everywhere.

Ah, here we go. Ahem, Nepgear, with Neptune gone. You, as her successor, must become the main character of this series. With the power of the protagonist and me, your trusty narrator, at your side you must save Gamindustri! Symptoms of being a protagonist may include headaches, vomiting, cold sores, 4th wall awareness, insanity, depression, bad ending syndrome, hero journeys, overpowerness, underpowerness, and an existential crisis caused by the knowledge that your will is not your own and that you only exist to fulfil sixteen-year-old pervert's creepy sexual fantasies.

"Uh-h-h-h, w-w-what?"

Elegantly said. Though to be fair, I think anyone else would be hard pressed to be any better words after finding out the very nature of their existence.

Deadpanned the Narrator. Thankfully Nepgear's experience with her sister allowed her to push past all of the 4th wall breaks.

"Wait, what do you mean saving Gamindustri? And I could never replace Neptune!" Nepgear shouted in a random direction .

You did a pretty good job of it in 'Hyperdimension Neptunia Rebirth Two.'

"That is not the point!"

Your right, and quite simple we have dallied here long enough. Now Nepgear, onward. Starting today it is your story and I know the perfect way to start it.

The orange square that blocked the door disappeared as if they had never existed in the first place.

Now! Nepgear walked outside her lab.

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