TheFanficGOD
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MHA182- Fun Sized
🕑 Added 2025-07-23 17:57:57 +0000 UTCEri threw herself at me, her arms wrapping tight like she was trying to squeeze the pain out of both of us. I caught her before she knocked me over, her small frame trembling against my chest as she cried into my shirt. Her tears soaked through, and for a second, all I could do was rest my chin on her head.
“Hey, you are getting snot all over me,” I said quietly, my hand moving up to pat her hair. “Gross little gremlin.”
She shook her head against me, her grip tightening.
“Fine, fine. Hug tax accepted. But you better stop crying before I start charging interest.”
Aizawa walked over but didn’t say anything. His gaze flicked to my hands, still shaking faintly from earlier, then to Eri clinging like she was welded to me.
“What the hell was that?” Aizawa asked, staring like he was debating if I was worth the trouble of expelling on the spot.
I wiped the blood off my chin with the back of my hand and shrugged. “A fail safe.”
He squinted at me, clearly trying to decide if I was full of shit or just an idiot. Probably both. I didn’t explain.
[YOU FUCKING MORON.]
‘What now?’
[CONGRATULATIONS. YOU LET THE GREMLIN REWIND YOU TOO FAR. ENJOY YOUR NEW PUBERTY BODY, DUMBASS.]
My bones ached like they were folding inward, muscles twitching and pulling tight. “The fuck…” I croaked, my voice cracking halfway through. I looked down at my hands, smaller. Cleaner. No scars.
'…Oh, fuck me.'
Aizawa squatted beside me, eyes narrowing. “Something you want to share?”
My brain short-circuited. What the hell was I supposed to say? ‘Sorry, got Benjamin Button’ed?’ Yeah, that would go over great.
“She, uh, overshot.”
He stared, realizing, and I swear I heard a gasp.
I motioned to my face. “I think I am seventeen again. Maybe sixteen."
Hehe, Mirko was in trouble. Bodily, I was almost a minor now. Wait… does this mean I am back to virginity? How the hell does that even work?
‘System, help.’
[YOU ARE LITERALLY ASKING IF YOUR DICK GOT A REBOOT.]
‘Yes.’
[IT DID NOT. VIRGINITY IS A SOCIAL CONSTRUCT, DUMBASS.]
‘Liar.’
[TRUST ME. NO ONE IS PATCHING THAT BACK IN.]
“Oi, stop zoning out,” Aizawa said. “You still alive?”
I cracked my neck, ignoring the creaking sound. “More or less. Not sure about my age though.”
When we got back home, Nejire crouched in front of me, her face way too close. “Oh my god, you are like… baby Ryuu now. That is hilarious.”
“Don’t call me that. I will dropkick you.”
She flicked my forehead. “Not with those noodle arms.”
“Watch me.”
Mirio peered over my shoulder. “He does look younger. You are even shorter now.”
“I am not short, you are just oversized.”
Izuku was staring like I was an alien ever since I stepped into the house. “So… how far back did she rewind you?”
“Hard to say,” I muttered. “I didn’t get reset all the way, so… probably not to diapers.”
Nejire smirked. “Shame. I wanted to see if you would need someone to change you.”
“That is illegal. Pervert.”
Aizawa rubbed his temples. “I don’t care if you are seventeen or seventy. You pulled some reckless shit again. Do I even want to know why?”
“Nope.”
He stared at me.
“Fine. Eri’s horn needed a test run. I gave her one. It worked.”
“You almost died doing it,” Izuku said quietly.
“Almost. Key word. Still breathing, still talking, still better looking than you.”
Nejire leaned over my shoulder. “How does it feel being a legal minor again?”
“Shut up.”
Mirio tried to hold back a laugh and failed. “I mean, technically you might have to retake your driving test too.”
“Kill me now.”
Aizawa glanced at Eri, who was still gripping my shirt like I was about to disappear. “She seems fine for now. But we are going to have to monitor her Quirk closely after this.”
“I can handle that,” I said.
“Right. Because you handled this so well.”
Nejire snorted. “He handled it enough to get babyfied. That is a win.”
I flicked her forehead again, harder this time. “Next time you are the bait. Let’s see if you age backwards into a fetus.”
“I would be adorable.”
“You are already annoying. No need to downgrade further.”
Izuku was still frowning. “What if Eri struggles again? This isn’t sustainable, Ryuu.”
“Then we train her until it is.”
Aizawa didn’t argue. He just sighed and walked toward the exit. “We are reporting this, but don’t expect backup when this bites you in the ass.”
Mirio patted my shoulder. “At least you didn’t fully rewind out of existence. That is progress.”
Nejire grinned. “Hey, Ryuu, if you are sixteen now, does that mean we have to throw you another birthday party?”
“I swear, Nejire, if you buy me candles shaped like baby bottles, I am setting them on fire.”
“You would have to reach the lighter first, short stack.”
“Keep talking, gremlin. I will make sure you regret it.”
The System beeped again.
[CONGRATULATIONS: YOU’VE SURVIVED YOUR OWN IDIOCY. AGAIN.]
‘Shut up. Do a check up.’
[ALREADY DID. ENJOY YOUR NEW BODY, BABY RYUU.]
“…I hate you.”
[NOT AS MUCH AS YOU HATE YOURSELF.]
“Fair.”
“Oi,” Aizawa called from the doorway. “You coming or do I leave you here to figure out puberty again?”
“Don’t you dare.”
When I walked into the classroom the next day, the second my foot hit the floor, half the room turned their heads and the shit-eating grins started spreading like an infection.
“Yo, is it just me or did the doorframe suddenly get taller?” Kaminari said, already snickering.
Mina didn’t even hesitate, she came over and casually plopped her hand right on top of my head like I was her younger brother or some lost toddler. “Aww, look at you! So cute! Need a booster seat for your desk?”
I swatted her hand off. “My height shot up late, alright? I will grow tall again. This is temporary.”
“Sure it is,” Sero called out from the back. “Next thing we know, you are showing up in diapers and asking for snack time.”
“Don’t tempt me,” I shot back. “Snack time sounds better than dealing with your faces all day.”
“Bro, you are like… barely taller than Mineta now,” Kaminari added, barely holding in his laugh.
“That is cap!” Mineta piped up immediately, jumping out of his chair. He ran over and lined himself up next to me, standing as tall as he could. “See? Still a lot taller than me!”
“By a damn hair,” Bakugo barked, the corner of his mouth twitching. “Oi, did you actually let the brat rewind you, dumbass?”
“Yeah, he is practicing for his second childhood,” Mina quipped.
“Shut your mouths. All of you,” I said, pointing a finger like I was about to unleash divine judgment. “This is medical. Serious business. Recovery Girl said I am still perfectly functional.”
Mina raised an eyebrow. “Define functional.”
I glared at her, “Mina, do not tempt me, or I swear to God...”
She snorted, waving me off. “Sorry, not into little boys.”
My eye twitched so hard I thought it might pop out. Before I could snap back, Toru zipped up in front of me like she had been waiting for her chance to join the roast.
“Can you still see me, or did your ability to see invisible girls get rewinded too?” she asked, her hands waving in front of my face like I had gone blind.
I stared at her. Was her chest always that big, or were my hands smaller now?
“I can see you,” I said flatly. “Nothing got removed except my damn height.”
Kaminari leaned forward on his desk, smirking. “Are you sure about that? Maybe your brain shrunk too. Would explain so much.”
“Careful, Pikachu,” I said, cracking my knuckles. “This size just makes it easier for me to aim a kick straight to your balls.”
He laughed, leaning back. “Relax, man. We are just appreciating the new, compact Ryuu model.”
“Compact my ass.”
Mina poked the side of my arm like I was some kind of lab experiment. “I dunno, this version’s pretty cute. You should stay like this.”
I swatted her hand away. “I am not a damn Tamagotchi for you to play with.”
Sero grinned from across the room. “Maybe not, but you’re fun-sized now. You even fit the ‘baby on board’ sign.”
I sat in my seat, muttering curses under my breath. I kept my eyes glued to the desk. If I gave them even a hint of a reaction, they would go full feral. Of course, my luck was garbage, so the second I thought I had some peace, the door slid open and in walked trouble wearing leather and a smile that screamed illegal. Midnight was already grinning like she won the lottery, and her eyes locked onto me like a hawk spotting a rabbit.
Great. Just what I needed.
She strolled in, swaying like she owned the place. “Well, well, Class 1-A. And here I thought nothing could surprise me about this class anymore.” Her gaze didn’t leave me. I swore I saw stars in her eyes.
‘Oh god, she’s really a shotacon, isn’t she.’
Midnight’s eyes locked on me like I was a piece of candy left in a daycare. A chill crawled down my spine.
‘Oh no. She’s looking at me like I am snack-sized.’
[OH, SHE IS DEFINITELY A SHOTACON. GOOD LUCK, BABY RYUU.]
---
Lucky for me, the next class after Midnight’s circus act was physical training. Perfect excuse to get all this pent-up energy out before I ended up committing crimes in the middle of homeroom. The second we stepped outside, I spotted All Might waiting.
They were chirping all morning. Every time I heard “baby” or “short stack,” something inside me snapped tighter.
I cracked my neck, glaring at the lot of them.
“I want to fight them all.”
All Might blinked. “Pardon?”
“Every single one of them,” I said, jerking my thumb at the rest of 1-A lining up behind me. “Line em up like bowling pins and let me swing.”
Kaminari laughed. “You? Fight us? Bro, you are barely taller than my backpack right now.”
“Don’t let the toddler height fool you,” Sero added. “He is still feral.”
Mina grinned. “Aww, this is gonna be so cute. Baby Ryuu trying to fight his big siblings.”
I twisted my wrist until the joints popped. “Cute? You are about to catch these tiny hands and regret your life choices.”
Bakugo snorted. “You? Try it. I will break your whole midget body in one hit.”
“Big talk from Boom Boom Boy,” I said. “Careful, I might dodge so fast you will combust your own ass.”
“Try me, shithead!” Bakugo’s palms started popping.
All Might clapped his hands together before Bakugo could detonate the lawn. “Now, now! Let’s calm down. Ryuu, are you seriously asking to spar with the entire class?”
“Yes,” I said. “They’ve been running their mouths since I walked in. Let me shut them up in bulk.”
“Don’t act like you didn’t start it,” Jiro muttered.
“I didn’t start shit. I exist, and they all suddenly became comedians.”
“Facts,” Mineta said, raising his hand. “He walked in like a DLC character from a baby simulator. I couldn’t resist.”
I stared at him. “You’re first.”
“What?!”
“Yup. You just volunteered.”
“Hell no! I was joking!”
“Too late.”
Comments
TheFanficGOD
He is 16. Stats didn't change. Only his body. Will explained in the next chapter.
hector lyng
How much did it rewind, how old is he, what are his before and after stats?
