Izuku couldn't help but feel silly in the giant black robe he was wearing. Though his uncle tended to wear cloaks he never cared for the look himself. The absolutely tiny graduation cap between his horns didn't help matters either. As he followed in line towards the school gym he ducked under the frame. While the normal graduation route usually entered from the door in the corner, the school decided to use the large shutter door so that he could follow his class in line without having to use his quirk.
Glancing at the bleachers, he saw his mom being passed a tissue by Kurogiri, Tomura making sure to catch everything on camera. Maki sat nearby, where Izuku could usually be found during pep rallies. The large 'chair' had been Pony's project in shop, with the school planning to keep it for any other large bodied students in the future.
As the music played he couldn't help but think back to how the past decade had changed so much yet so little…
When Izuku's fluffy mass of hair turned into green and black smoke, no one was really surprised. When nothing else changed it was a bit more bizarre, but Izuku liked his fleshy self, as cool as being living smoke was he was fine with it just being his hair.
Currently all Izuku could do was open a fairly small portal within his line of sight and that was it. While Kurogiri could warp to specific coordinates, it was through a mix of practice and experience he was able to do so.
Inko found it funny that Izuku's hair was more compliant as smoke than it was as his actual hair. With a bit of experimentation they could bind it in different styles, but if too much force was applied it would slip through like a liquid. Izuku was just happy he didn't have to brush or comb it any more.
Ever since Tomura had moved to his proper grade, Pony Tsunotori and Izuku had been glued together at the hip. It came then as no surprise when Izuku's smoky green hair was parted by a pair of horns the day he turned eight years old. What had surprised the family was the complete absence of Maki's quirk in the young, rapidly growing boy.
Pony loved having a horn buddy, with the both of them spending time practicing controlling their horns. It had led to an interesting discovery for the children and parents though. Apparently Izuku's quirk copied everything a little too well, with Pony and Izuku discovering that, once their horns were off their head, they were able to be controlled by either of them.
With a bit of testing, Doctors were able to determine his quirk's copy was a little too perfect. Because the copy was so exact, the two quirks had identical quirk genes and factors. An example the doctor gave was if he copied the quirk of someone who could remove their hair and harden it into a weapon, he and that person could use each other's hair with their quirk.
It wasn't until he was fourteen that Maki's quirk started showing itself. His skin got tougher, he required less rest, and he started going through clothes every month almost. By the time he was sixteen he was eight feet tall. The last time they measured he was almost the same size as Maki at thirteen feet base, not including his horns.
It had been an… interesting experience, to learn more about his Uncle Maki's quirk. Besides the physical enhancements it gave, it had another interesting aspect. As he and his uncle did strenuous exercise, whether through fighting, or just a solid workout, they accumulated energy as they did so. They could then 'consume' the energy, to grow in size, drastically increasing their strength and durability. The downside was they couldn't control how long until they shrunk down.
As the energy in them would fade away as they rested, so too would it happen if they consumed it. Basically, once they were big, they were stuck like that for however long it would have taken the energy to fade away as if they hadn't.
The energy also had a variety of other uses, they could consume it to substitute actual rest, at the expense of running the risk of shrinking down before they were ready,causing great strain on their bodies. Maki once told him about how he had to fight for an entire week when he was younger on three hours of sleep. It was because of his incredible durability, and his ability to stay in the game for long periods of time, that his uncle had named it "Rolling Stone". Tomura got a good laugh at that one at his choice of names.
"Izuku Midoriya!"
The call of his name snapped him out of memory lane, and realizing he zoned out a little, he moved from the line he was waiting in and followed the laid out carpet.
As he walked near the stage, he took his diploma before posing for a quick picture with his principal. Even with the stage giving him four extra feet, the guy barely came to Izuku's shoulder. As he headed towards his seat, he lost himself to his thoughts again as he waited for one other name in particular.
"Pony Tsunotori!"
There it was. At five foot three, his friend hardly came up to his hips. Her cap sat between her horns much less comically than his did. As she posed with the principal she smiled in his direction before taking her seat in the row behind him. From there it was an unremarkable stretch of drawling speeches from the valedictorian, principal, and a few others before they finally did the silly string flip ceremony and they were free to mingle with friends and family.
As he headed to his family, he saw Pony head towards her mother. Mrs. Tsunotori was an American hero with a Minotaur quirk, while her dad had a minor hair controlling quirk and was a stay at home dad.
As his mom collided with his thigh in tears, he patted her back as Tomura punched his other leg.
"So, little Zuzu's all grown up and graduated. How's it feel to be an adult?"
Rolling his eyes as he comforted his mom, he answered Tomura's question.
"I don't know, probably like this."
Tomura blinked in confusion.
"Like wh-"
"Tooooomi!"
Tomura's question was interrupted by a blond bombshell missile known as Pony knocking the wind out of him. Hugging him with all her quite formidable strength, Izuku wasn't sure if his brother's face was red from being unable to breathe, or embarrassment.
"I haven't gotten to see you in ages! You started college at UA and I never got to see you and Zuzu was being a stick in the mud because he missed you!"
"Wha- I was not!"
Tomura awkwardly hugged Pony before she stepped away to give Inko a hug. He scratched his head a bit in embarrassment.
"Yeah uh, sorry about that. I've been studying for midterms and with UA having a dorm policy I haven't had much chance to see or talk to anyone."
Pony's crossed arms and pout could kill lesser beings.
"You could have texted! I know you stay up late so don't give me the excuse of not wanting to wake me up!"
As Tomura looked around for help, all he got back was a smug grin from his traitor brother, Kurogiri's indifferent stare, with Maki and Inko pretending not to notice his plight.
"I'm sorry, I'm sorry! I'll try and do better!"
That seemed to satisfy her before she turned and gave Izuku his hug.
"Your brother is so mean Zu! How do you put up with him!"
Hugging her back with a single hand he chuckled.
"With lots of aspirin."
Pony adopted a thinking face before looking back at Tomura.
"Makes sense. Anyway I'll see y'all later, mom wanted to talk about something!"
And with that savage blow to Tomura's pride, she skip-galloped back to where her family was watching in amusement.
Standing with a groan, Maki made his presence known.
"If her mom's going to talk about what I think she is, I've got something to tell you too."
Rolling and cracking his neck, Maki continued.
"With you being out of school, and UA hosting its heroics entrance exams in another five months, I'm upping your training. Before now we haven't had many chances to train you in my quirk, but starting next week, I'm training you in mind, body, and quirk."
Izuku couldn't help but gulp. Spring break had been hell week for him. Maki had allowed him only a couple nights of sleep as he kept himself going purely through Rolling Stone.
Inko came to his rescue by smacking Maki's shin with her purse.
"That's enough! We're here to celebrate him graduating, not scare him half to death!"
Turning to Kurogiri, Inko gestured towards Izuku.
"Now, Kurogiri, how about we show Izuku his surprise."
As a portal formed to life behind the sharp-dressed man, he bowed before leading the way through, followed by Maki and Tomura, then lastly Izuku himself.
"Oh my god I can't believe y'all did this."
They were at a Hawaiian seafood restaurant. And he didn't mean Hawaiianthemed, no, they were on the actual island of Honolulu.
"Surprise!"
Inko smiled at Izuku's reaction.
"I know you miss some of the seafood I used to make when we lived in Japan, but because of their quirk laws we figured this was the next best thing! It was Kurogiri's idea, the big softie. You like it?"
The sudden, encompassing hug from the green haired giant that Inko, Tomura and Kurogiri found themselves in was all the answer they needed.
Izuku found Maki waiting in the middle of the family's large estate. With it being little more than an empty pasture with their house towards the front, it was perfect for Maki and Izuku to cut loose.
"Alright Izuku, with UA's exam five months away, I'm going to train you until you can take on All Might himself! Now, think fast!"
That was all the warning he got before a hastily thrown punch with the force of a train behind it collided with his hasty guard. Maki quickly backed up before crossing his arms in annoyance.
"Why did you block my punch?!"
Izuku was so confused by the question he actually dropped his guard.
"Because I didn't want to get hit?"
Maki quickly used his deceptive speed to close the gap, nailing a punch straight to his gut.
"Wrong answer! If you didn't want to get hit you wouldn't have blocked it with your body!"
Even with his durability, a full power punch from Maki left him breathless. His look of confusion asked the question his throat couldn't.
Letting out an annoyed grunt, Maki continued. "Why didn't you block with a portal? You've seen me and Kurogiri spar! I spend more time punching and kicking myself than I do him!"
"I- cough get it."
"Until now, we've been training just your body and quirks, now we're training your mind ! Now use the energy from that love tap I gave ya. We're starting big today. You're going to need practice fighting smaller opponents at full size."
Nodding, Izuku took off his shirt and pants before feeling himself enlarge to 20 feet, with his large build he was almost as wide as a bus now. He was thankful for the briefs he wore with their ability to grow, but by god did they chafe.
"Not large enough for what I have in mind. You're going to do nothing but try and dodge or warp my hits until you have enough energy for full size. Consider the hits you take motivation for not getting hit, and either way you're building up!"
"Yes sir Uncle Maki!"
What followed was a brutal beatdown, with Maki easily slipping around Izuku's sloppy portals, and his large size making it harder and harder for Izuku to simply dodge out of the way. Even when Izuku's leg was as large as Maki, the juggernaut's hits were still enough he'd have some bruising.
Izuku didn't realize how big he had gotten until Maki stepped back. Now that he finally had a moment to think he realized the familiar stretched feeling of max size, he'd only failed to notice because Maki had been keeping himself to scale after a certain point.
"Take five, I'm going to go grab something, enjoy the view."
Thankful for the chance to catch his breath, Izuku flopped onto his butt with an earth shaking thud.
Standing as tall as a seventy feet, Izuku did appreciate the view, it wasn't often he and his uncle went all out. The last time he had done it he'd capped at only eight stories. It was honestly one of the greatest views, as well as one of the oddest. With most trees barely reaching his waist if even that, he had an unobstructed view for miles. If he squinted he could see the large power lines that went from city to city off in the distance.
"Alright! Break times over!"
Maki came back with an engine block. He carried it like someone would carry a stack of books instead of a several hundred pound piece of machinery. He sat it down a ways from Izuku before turning and staring him in the eyes. It always felt weird to look down at his uncle like this.
"I've heard you mutterin' to yourself at times, and had Shiggy take a look at your journals for me, and I feel it's time we tested what makes your quirk so unique. I want you to pick up this engine block for me."
As Izuku began to walk over towards the engine Maki held a hand up.
"Without standing up, or moving in any way."
Eyes narrowing, Izuku looked towards the engine block.
" I could warp it over to me, but that can't be what he's talking about. Which journal was he talking about? I think I've written about my quirk in at least three of them over the years…"
Izuku looked at his hand, the odd tanlines from where his gloves normally covered his pinky readily apparent at his large size.
"Well what are you waiting for! Pull it to ya!"
Realization dawned on him then.
" My mom's quirk is the Attraction of Small Objects! Small is relative… so if her quirk lets her pull something she can fit into a single hand…. Then that means!"
Holding a hand out towards the engine block, Izuku felt for the familiar mental tug as he sunk his psychic hooks into the block. It began to slowly lift up and started moving towards his hand as he did the same gesture his mom had always done.
"There we go! I was starting to worry Tomura was right about you muttering being just the wind between your ears! Now I want you to try and use it on me!"
Even though his uncle was about three stories tall at this point, he could still reasonably fit the large man into a single hand.
As he reached out towards his uncle, he felt much greater resistance as he tried to hook him. With much more effort, his uncle started to leave the ground at the same rate the Engine block had previously.
"Alright that's enough! I want you to give me one of your horns, and then I want you to create and hold the largest portal you can until you shrink down! After that we'll do light exercise and call it a day."
Nodding, Izuku dropped his uncle to the ground before willing one of his horns to come off, another immediately growing to replace it. After that, he created as large of a portal as he could, its large green form easily being triple the size of himself. Thankfully the air over their property was a no-fly zone, so he didn't have to worry about messing with any planes on accident. As Izuku waited for his time to run out, he felt the pressure increase drastically to hold the portal open until it was taking all of his focus just to hold it open. Eventually it became too great, and the portal dissipated into nothing. When he opened his eyes, he realized he was almost staring his uncle in the eyes, a mix between him shrinking and his uncle growing to match him.
"Just as I thought… the larger you are the larger the portal you can make…. Last test. I want you to try and hit me with that horn. Now that we know how well it scales up, lets see how well it scales down. I want you to rest a bit, then try and move this-," Maki gestured to Izuku's horn, that was as big as Maki himself, "-with everything you've got. We're then gonna have you grow until you're able to do so, got it?"
Izuku got the feeling he wasn't going to be having an easy day for a while.
