My Baby Girl Academia (Private for Neran and Diapered Avenger)
 

Ochako Uraraka walked down the street in… annoyance. She had been trying to find a way to help her parents make money, but so far it was unsuccessful. Since she couldn’t use her quirk to help out she was left without a chance.

Suddenly, she saw a girl in Japanese preschool uniform walking down the street.

She was running to find something, albeit with a slight waddle.

“Come on, where are they?” She asked as she ran by Ochako with an urgent look on her face.

"Hey, are you okay?" Ochako asked as she chased the girl.

She didn’t seem to hear her, only for her to turn into an alleyway and see some thugs. She grinned as she looked at them. “All right boys! It’s time for you to go down!”

"Are you crazy?! You're just a kid!" One of the thugs took out a knife.

The pink skinned girl grinned before she shot towards them.

The other thug used his quirk to breathe fire at her.

She shot liquid at them that burned before she kicked the thug in the stomach, doing much more damage then it should have done.

Ochako was clearly confused by the sight of this.

The pink skinned preschooler cheered as she hopped up and down, causing her skirt to go up and reveal a pull up. “I did it!!”

"H-How did you..." Ochako was at a loss for words.

The girl froze before she turned around and noticed her. “…Um… hi…” She said with a ton of nervousness.

"Who are you?" Ochako asked.

“…Mina.” She said as she looked up to her. “I don’t suppose you would be able to never talk about this again, would you?”

"But what kind of kindergardner knows moves like that?"

“I’m the… well… I’m just really well trained?” She asked sheepishly.

"And you're still potty training?" Ochako added.

“Yeah.” She said ashamedly. “I’m still working on getting fully diapered.”

This only served to confused Ochako even further.

“Uh I mean, I…” She started whimpering out of nervousness.

Ochako slowly walked towards Mina.

“I…I didn’t…Waaah!!” She cried as she wailed.

Ochako picked up Mina and tried to comfort her.

She hugged her as she cried a bit before she sniffled. “I think I owe you an explathingy.”

"Yes, you do." Ochako replied softly.

Suddenly, they were engulfed in a rainbow light.

Ochako gasped and tried not to scream.

Suddenly, they were in a giant white circular building at the bottom floor center. And floating in front of them was… a baby with rainbow hair wearing a diaper and shirt that said ‘Rainbow Baby’.

"What... what is this place?" Ochako asked.

“Well, this is… I should probably…” She tapped her pull up, and suddenly the small toddler became a teenager Ochakos age… wearing a preschool uniform and pull up. “Hey…”

Ochako stumbled back and fell back on her butt in shock.

“Can we take this somewhere else? Shes sleeping right now.” Mina said as she pointed at the rainbow baby girl.

"But... but..." Ochako had actually wet herself in shock.

Mina smiled as she looked at her. “Hey way to go.” She said as she took her outside to… a beach?

Ochako was very confused, and very embarrassed.

“So ummm, you have questions… maybe I can answer some of them?” She said with a sheepish smile.

"Do you have a change of clothes?" Ochako asked. Technically, it was a question.

“…” She lifted her skirt to expose her pull up. “I have more pull ups.”

"Is that all you have?" Ochako asked.