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English
Series:
Part 9 of Nakahara-Dazai Ochaco
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Published:
2026-04-17
Completed:
2026-05-26
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1,781
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2/2
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De-ageing! Not as fun as you think!

Summary:

Getting hit by a de-ageing quirk was not on Ochaco's bucket list.
But it happened anyway.

Or Nakahara-Dazai Ochaco gets hit with a de-ageing quirk, turns feral against everyone but her family, and calls to be picked up.

Or or My ADHD hit like a Goddamn truck

Chapter Text

Aizawa breathes in deeply, pinching the bridge of his nose, trying to make the situation in front of him make any amount of sense.

"So let me get this right..." He sighs, having aged 10 years in 10 seconds, "You and Uraraka were on patrol, like you were told to. When suddenly a robbery happened at a convenience store, you both went to apprehend the villain. After you did that, Uraraka suddenly passed out and began to shrink into a child."

"Mm." Bakugo says, glaring at the floor of the infirmary as he sits at his classmates bedside, "I came straight here after handing the shitty villains to the police."

The teacher breathes deeply again, "And according to Recovery Girl, Uraraka is perfectly healthy just de-aged?"

"Correct, Shouta." Recovery Girl nods, "The police sent over the villains file, according to it their quirk lasts about one or two days."

—---------------------------------—

Ochaco felt like she'd been run over by a bus or maybe cousin Kyōka hit her too hard again? She groans, sitting up slowly, "Papa? Would you bring me some ice?" She asks, keeping her eyes closed.

"Uraraka?" A unfamiliar unsafe voice asks. Her eyes shoot open, she sees an old woman, a middle-aged man and a teen boy, she doesn't know these people. Looking around, examining the room, she doesn't know this room. She has never been anywhere like this. Where the actual fuck is she and where the fuck is her family?!

—---------------------------------—

"Who are you!?" Uraraka exclaims, before any of them can blink she's placed herself in a corner, holding a scalpel, eyes darting around in panic.

"Calm down, Uraraka." Recovery Girl says, voice calm and steady, "I am the pro hero Recovery Girl, you are in UA, you have been hit by a quirk that has de-aged you."

"Why-?" She starts, before stopping herself, "Can I make a call?"

"Here." Recovery Girl says, handing over a school phone. The three watch as the 8-year-old brunette dial's quickly.

—---------------------------------—

"Armed Detective Agency, who's calling?" Haruno Kirako answers the phone easily, beginning on some paperwork only half paying attention to the call.

"Aunt Kirako." A much too small voice starts, trembling slightly, "Help.?"

"Little detective?" The brunette woman exclaims, quickly walking up to the president's door, "What's wrong?" She opens it, knowing Fukuzawa will want to know about this.

"I don't know where I am!" She says, voice fragile, "I'm with strangers! And I want papa and dad!" It's clear to the secretary that the girl is holding back tears.

"Kit?" The ADA president says, voice soft and caring, "Can you explain, please?"

"I just woke up! And they say I was hit by a de-ageing quirk!" The young girl gasps, holding the phone close to her ear, searching for comfort in the familiar voices.

"It'll be alright, kid." The older man says, signaling the secretary to gather the others, "Will you hand me over to the strangers?"

Her breath hitches, watching the three in the room with her with distrustful eyes, "B-but- I'm- I'm... scared... Grandpa..."

"Do you see a leather bag?" He asks, grabbing his sword, leading the agency towards the train station, smiling slightly when she makes an affirmative noise, "That's your bag, you should have something safe in there. Will you please give me to the strangers?"

The girl makes an uncontented sound but does what the old man says.

"Aizawa Shouta, speaking." A gruff voice says.

"I will be coming to pick up Ochaco until she turns back." Fukuzawa states simply, "We will be arriving by train at xxxxxxx Station. Please bring her there at 6 pm." He hangs up, turning to the assembled family of the young Nakahara-Dazai, "Let's go, we have a kid to comfort."

—---------------------------------—

~~~~6 pm~~~~

"Why are we at an abandoned train station, Aizawa-sensei?" Midoriya asks, fidgeting with his costume.

"This is where they said to meet them." The pro hero says simply, eyes serious.

A few moments later a train pulls into the station, Uraraka perks up, beginning to smile slightly. The doors open slowly.

Before the doors can fully open Uraraka has gotten out of Aizawa's grip, running towards the train, smiling brightly, "Dad!" She exclaims, hugging a tall brown haired man around his legs.

"Hello starlight." The man says, smiling warmly at the child, quickly picking her up, voice warm and kind.

"Oh, Ochaco-hime!" A blonde woman coo's at the small girl, eyes basically hearts.

"Higuchi." A black-haired man shakes his head in exasperation[why did Gin have to be on a mission?].

While that is happening a white haired man walks over to the assembled heroes, "I am Yukichi Fukuzawa, Ochaco's grandfather."

"Do you have any proof?" Aizawa raises his eyebrow, "I'm not about to let my student go with a stranger."

The older man smiles slightly at the teachers protectivenes, pulling out his phone, showing a picture of him with a teenage Ochaco, both smiling happily at the camera.

Aizawa sighs tiredly, "Alright, I expect her back next week."

"Understood." The other man chuckles warmly, following the others back onto the train.