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

Conversation on Discord plus an image that I saw made me think of this.

IF let out a soft sigh as she looked outside and saw it raining hard. "Jeez, and I was going to go to the guild today as well..."

"You know," a new voice spoke up and she turned to see a blonde girl who was a head taller than her with long blonde hair, blue eyes and breasts that were a large D-cup. Said girl was wearing shorts that went to her knees, a black and yellow striped tank top under an open blue and white jacket, "you're only fifteen, Iffy, you don't need to get a job."

"Yes I do," the small brunette grumbled and looked away while crossing her arms. "...It's not fair! You and Compa get boobs while I'm as flat as Lady White Heart." She pouted while looking out the window. "How come you get boobs and I don't, Peashy?"

The blonde shrugged and walked over to the window to look out at the rain. "I dunno. Ask Neptuna or Ploot."

"You know how to say their names." IF said, giving the teen girl a flat stare.

"Yeah..." Peashy nodded and giggled. "But I like calling them that, because Neptuna's name is a pain in my butt to say and Ploot doesn't care. And you know you don't need to get a job."

"I'm not going to leech off of Nep and Lady Plutia for the rest of my life." IF countered. "What about you?"

Peashy shrugged. "I dunno..." A slightly sad look came to her face as she sighed. "I feel like I missed out on something ten years ago. I wonder what that item was..."

*Flash...*

"H-hey!" Rei gasped as she saw the little blonde girl grabbing a CPU Memory that had fallen out of her pocket. "Oh dear, j-just wait, don't..."

Before the girl could do anything, a Horsebird fluttered by and knocked the little child over while kicking the item into the distance.

*End Flash*

"And then Neptuna and the others found me and brought me home..." Peashy sighed and shook her head.

IF shrugged. "Well, we know that she was working for the Seven Sages, so it was probably a good thing that you didn't eat that thing."

"But it feels like I missed out on something." Peashy sighed and turned to walk away. "I'm going for a run."

"...In the rain?" IF asked and Peashy nodded. "...Please wear something appropriate."

Peashy paused for a moment before grinning. "Okay!"

IF didn't like that grin and looked away. "Don't follow, don't follow, don't follow, don't..."

(-)

"Why don't I ever listen to myself?" IF asked as she stood by the door waiting for Peashy. A moment later, she gawked as she saw Peashy, wearing a yellow and black bikini, running to the door, well, bouncing was more accurate. "What are you wearing?!"

"My swimsuit." Peashy said as though it was the most obvious thing in the world. "Anyway, I'm going for a run, see ya!"

IF couldn't say anything as Peashy ran off... At least until she realized that Peashy's bikini was a thong. "HEY! PUT A REGULAR BIKINI BOTTOM ON!" She yelled at the running Peashy.

"NO!" Peashy yelled back.

"Oh dear..." A voice that had IF stiffening in shock. Turning, she saw Plutia looking out the door in worry. "Did Peashy go running in that?"

"L-Lady Plutia? I-I-I never..."

Peashy smiled at her. "It's okay, Iffy. I know that you wouldn't let her go in that if you saw her change into that." She sighed softly and looked back outside. "...Sometimes I wonder if she's just trying to do stuff to get a reaction?"

Plutia loved Peashy, she really did, but ever since the girl had entered puberty, she went off to sulk at times, talked back, ignored rules when she thought she could get away with it.

And she even did that after Plutia had disciplined her in HDD more than once!

"Well, um..." IF smiled nervously as Peashy looked at her. "I've met some kids my age and they get into trouble with their parents all the time, and they do it because they feel like they're not being respected. Maybe this is the same thing?"

"But I respect Peashy..." Plutia pouted. "Why is she..?"

"Maybe she wants to run Planeptune?" IF asked, half-serious. "Maybe she thinks that since she was raised by you and Nep that she deserves to lead the nation? You know how she gets weird ideas in her head sometimes. Maybe her wearing that bikini is her way of showing off like how you and Nep do in your goddess forms?"

"Woooow, Iffy!" Plutia smiled at the brunette. "You're so smart."

IF smiled at her.

(-)

An hour later...

"Phew!" Peashy smiled as she walked into the Basilicom, dripping water down her body. "I'm going to need new shoes and BWAH?!" She yelped as a towel hit her in the face. Pulling it down, she saw Neptune standing there. "Hey, Neptuna..." She gulped at the frown on Neptune's face. "...Is it because I'm wearing a bikini?"

"You're wearing a thong bikini. When did you get a thong bikini?"

"A week ago." Peashy said as she dried herself down. "I don't see why you'd be upset. Ploot wears a thong in HDD."

Neptune bit her lip softly. "Plutie has long hair that covers up most of her butt too, your hair doesn't reach your butt. And besides, I can't make her change her processor, but..."

"Everyone knows that I live here and anything I do reflects on you and affects shares, you, Gear and Histoire have told me a thousand times already." Peashy said as she dried her hair.

"Then..." Neptune began. "Why do you..."

"Because I'm not a CPU! You and Ploot do enough to make people think bad things about you anyway." Peashy huffed in annoyance.

"Hey!" Neptune protested. "That's not fair, Peashy. Plutie and I have been working really hard to get shares up and..."

"What? Every three days when Histoire reminds you that you need to get back to your world?" Peashy snapped back as she finished drying her hair before throwing the towel back at Neptune, who caught it. "Thanks for the towel, but I don't want to hear another lecture from you, Histoire or anyone right now."

"Hey!" Neptune protested as Peashy walked off. "Listen here, young lady, you need to..."

"What? Listen to someone who's going to be leaving in a few days because you'll have the portal open so you and Gear can go home? There's no reason to listen to someone who just runs away when it's convienent!" Peashy ran off, leaving Neptune to look at her sadly.

"...P-Ko..." Neptune said softly. "I'm sorry, I have to go home, they need me back there."

It had been easier to deal with Peashy when she was a child. As a teenager, her emotions were wild and unfocused.

Walking back into the Basilicom, Neptune sighed softly and looked up as Nepgear had a concerned look on her face. "Hey, Nep Jr., how are we doing gathering shares anyway?"

Nepgear frowned softly, but decided to not push it. "Good news is, we'll be done in a day and we can go home." Neptune nodded and walked off. "...Neptune, don't take what Peashy said too hard, okay?"

"I know." Neptune smiled at Nepgear. "She's known me as one of the CPUs of Planeptune in this world her whole life, but they need us back home."

"Yeah." Nepgear nodded and hoped that Peashy would be okay when they left.

Obviously an alternate timeline where Peashy never became Yellow Heart and the CPUs took care of Eden differently than in canon. So we have a moody teenage Peashy that resulted.

Also, happy 10th Anniversary for the Neptunia franchise. The next game announced for the PS5 looks like it'll be the next mainline game in the franchise.