Hyperdimension Neptunia belongs to Compile Heart, Idea Factory, Sega and whomever else worked on it.

The sun was shining, there was a pleasant breeze that crossed all over Gamindustri and none of the CPUs were doing their work, which was frustrating for their oracles, but that wasn't important to what happened next.

"Hey, Nepgear!" Uni called out as she walked into Nepgear's lab. Normally she wouldn't go into Nepgear's lab, but it had been some time since she had seen the other CPU Candidate that she wanted to see how she was doing.

Not because she was feeling a little lonely or anything, that would be absurd!

"Hey, Uni!" Nepgear smiled as she looked up from what she was working on. Uni couldn't see what it was, since it was covered in a blanket. Though, considering the grime, sweat and some oil on Nepgear's face, Uni had a feeling the other girl was working on another robot.

"Are you making another Nepgeardam or something?" Uni actually found those robots that Nepgear made to be rather funny, not to mention that she secretly geeked out over them. After all, they were based off of her favorite anime series.

"Or something." Nepgear smiled at her.

"Huh, that's interesting..." Uni commented, wondering what Nepgear was up to.

Nepgear shrugged at that. "Sis wanted the Neppulus Rift as well, I don't know why. The last time we used it, she went deep diving into a game." Sadly, the information in the game that Neptune had been trying to protect had been erased before she could save it.

Uni snorted. "Don't tell me, Neptune's going to try and make an army of robot drones to do all her work connected to her brain or something."

Both of them laughed at that. That would be completely ludicrous, even for Neptune.

"Still..." Uni walked around and looked at the body on the table. "...Wait, how did you get her boobs to look so big?!" Oddly, the body looked somewhat familiar to her and the body was rather small, Uni estimated that the robot was probably about as tall as Blanc. There was long, blonde hair on the head. Her boobs weren't gigantic, Vert, her sister and even Nepgear were all bigger, but the little robot girl was noticeably bigger than Uni was in the chest and it made her upset.

"It's just silicone." Nepgear pointed out helpfully. "It's what they use in those mouse pads with giant boobs or butts." She blushed as Uni looked at her with blank, white eyes. "I, um, did some research."

"What kind of research would you do that involves this?!" Uni asked as she poked the robot's boobs and gawked. "The hell?! It feels real!" She grabbed the boobs and gave them a squeeze, mentally screaming how the robot had bigger boobs than she did. 'So unfair! Why can't I get a little bigger? Just a little bit.'

"Ah!" Nepgear's eyes lit up. "That's the latest Planeptune tech! It's silicone that feels like actual skin, it even warms up like real skin too!"

"...Why?" Uni asked and noticed how... Realistic the face looked. "Um, Nepgear, this is a little disturbing to me, but... How will you be able to tell the difference between this and a human?"

Nepgear tilted her head in confusion. "What are you talking about, Uni? This will be the greatest invention ever! It'll bridge the gap between flesh and machine!" Her eyes started to sparkle happily. "Why, if this works out well, maybe we can start with..."

"Stop." Uni deadpanned. "I don't want to hear about your fantasies of turning into a giant robot again." Piloting a giant robot, that would be cool, becoming a giant robot? Not so cool.

Nepgear blushed and rubbed the back of her head. "Well, I need to go take a shower and tell Neptune that it should be done now."

Uni nodded and watched Nepgear walk off. "Um, Nepgear, do you, um, need someone to wash your back?" She blushed as Nepgear turned and smiled at her, nodding.

"Sure!"

(-)

An hour later...

Neptune entered Nepgear's lab. "Yoo hoo! Nep Jr.! Is... Oh!" Her eyes widened as she saw no one was in the lab. "Huh, I wonder what Nep Jr. was..." She walked around the table and her eyes widened in glee as she saw the naked body on the table. "Ooooh! This was done perfectly!" Grabbing the sheet, she threw it over the body and picked it up before carrying the body out of the room.

"Excellent! This'll be the best thing EVAH!" Neptune cackled.

A few minutes later, Nepgear and Uni, both with flushed faces, walked out of the shower area wearing nothing but towels. "That was..." Nepgear trailed off, her eyes widening. "What the goodness?! Where did it go?!"

"You don't think it got up and walked off, do you?" Uni asked, knowing Nepgear had a tendency to do stuff like that.

Nepgear shook her head. "No way. I didn't do that. I hadn't added any extra systems yet. Heck, it didn't even have an A.I. yet! If it somehow got up, it would probably walk into a wall."

Uni scratched her head. "So it just had the basic systems then?" Nepgear nodded. "Hmm, if that's the case, someone probably came in and picked it up."

Both Candidates looked at each other and sighed, knowing it had to be Neptune.

"I just hope she doesn't do something stupid with it." Uni muttered, knowing how much it must have meant for Nepgear to make that robot.

"Well, she asked me to make it, I was just hoping I could test it first."

Uni shook her head and walked towards the door. "Come on, let's go get dressed and go look for her." After all, Uni had several changes of clothes in Planeptune's Basilicom

"Right." Nepgear nodded and followed after her.

(-)

It was roughly thirty-three minutes later that Nepgear and Uni found Neptune in her office. "Figures the last place that we look would be where she is."

"Well, if it was the first place we looked and found her, then we wouldn't have to keep looking, right?" Nepgear pointed out helpfully as she smiled, before getting a stern look as she looked at her sister. "Neptune! Did you take my robot?"

"Heya, Nep Jr.!" Neptune smiled and turned to face her. "And I asked you to make the robot, didn't I?" Nepgear nodded slowly. "So technically it's MY robot, right?"

Before Nepgear or Uni could respond, the windows to the outdoor patio opened up and Green Heart walked in before transforming back into Vert. "Neptune. You said you had something for me?"

"Yeppers!" Neptune smiled as she turned to face Vert and then pointed at a blanket. "Ta Dah!"

"...It's a blanket..." Vert said, though she noticed that it seemed to be covering a body.

"A blanket with something under it." Neptune giggled and pulled the blanket off, revealing a small blonde girl underneath.

Vert's eyes widened and she gasped as she stood there, trembling. "This..."

"Well, I remember you said you wanted her as a little sister..." Neptune grinned at Vert. "So... Congrats! Vert! This is your little sister, Bouquet!"

The little blonde girl fidgeted and blushed. "Um, you look exactly like your avatars did in the game."

"Wait, what?!" Nepgear gawked. "Neptune, is that the reason you wanted the Neppulus Rift?"

Neptune grinned at her. "Yep! I transferred a copy of Bouquet's A.I. from the game into this body and now WAGH!" Neptune was suddenly tackled to the floor. "Oooof! Vert?"

"You..." Vert's eyes were watering as she sat up and then pulled Neptune up and kissed her on the lips for a good minute, causing Uni, Nepgear and Bouquet to all blush crimson while Neptune's eyes widened. "Thank you so much, Neptune! I can't ever repay you for this!" She exclaimed after breaking the kiss.

"Heeheehee..." Neptune had a bit of a nosebleed. Between the kiss and Vert's boobs on her chest, the poor CPU was feeling a little over-stimulated at that moment.

"Um..." Bouquet fidgeted. "You know that I'm just a robot with an A.I., correct? I'm not your..." She was silenced as Vert grabbed her into a hug and started crying hard.

"...I don't think Vert cares." Uni commented and looked at Neptune. '..No wonder everyone puts up with her antics so much.' If putting up with Neptune's silly and crazy antics that included an exploding automatic pudding maker, and the occasional crazy inter-dimensional being or ancient CPU causing problems, then it was a relatively small price to pay for moments like this.

For Uni, it was easy to see why so many people loved the eccentric CPU.

Neptune ushered the two girls out of the room so that Vert could have some time alone with her little sister.

...Well, as much of a little sister that couldn't go HDD as Bouquet could be.

Neptune smiled as she looked back at them before closing the door. "Ah, that's good. Vert has a sister now." Neptune smiled brightly while Uni and Nepgear smiled back at her. "Maybe now she'll stop trying to poach Nep Jr. all the time."

Both Uni and Nepgear face-faulted upon hearing that.

What? You think Neptune wouldn't have an ulterior motive? XD

Plus, Bouquet was created by Vert's Japanese VA to be Vert's little sister. Not kidding. (Vert's VA has stated she wishes she could be Vert's little sister herself.)