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English
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Published:
2025-08-25
Updated:
2025-09-12
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2,433
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2/?
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3
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The Power of Cosplaying

Summary:

Cosplay can copy a person's quirk if they have physical alteration from a normal human. Like you can copy Iida's cuz of his legs or Eri's or you could copy Shoji's but you can't copy someone like Shoto's or Midoriya's quirk. You if you have a life-size version of a prop then you can make to prop turn into the thing it's imitating. Overuse is if you use it too much your limbs will stiffen to where you can barely stand up.
Marie Kitsune, a pink haired brown-eyed girl, has always wanted to be a hero... Marie looks up to Lady Nagant, so she inspired her to get into archery. She’s enrolled into the U.A. 's support course. She’s been friends with Mei Hatsume since kindergarten; they're like sisters. Marie is the only one in the support course who can understand Mei. They're the perfect duo up with the plans and blueprints being made by Marie and Mei executing them. Sometimes, their projects blow up in their faces but who cares that’s part of the adventure. One day Marie is almost captured by the League for her powerful quirk. All the U.A. teachers and support course agree on transferring her to the hero course because of it…

Notes:

Sorry if the description of Cosplay was confusing. If you have any questions about how it works just ask in the comments!!!! Also Overuse of Cosplay will make Marie's limbs stiffen to the point where it hurts to move.
Also Midoriya calls Bakugo "Kacchan" and Bakugo calls Midoriya "Deku" so I made Marie call Mei "Hatsmei" and when Mei and Marie get older Mei calls Marie "Arrow".

(See the end of the work for more notes.)

Chapter 1: Prologue/ The Ambush

Chapter Text

I practically vibrate with excitement as I walk into my brand new kindergarten class. This is my 4th kindergarten class cuz I apparently annoyed schools too much. Everyone just said they hated me cuz I was too hyper. I tried to make friends by showing everyone my quirk by pulling out a cardboard bow with paper arrows: transforming them then showing how good of an archer I am but everyone hated that too. I got into art to try to make some friends that way but they all avoided me. They all said they hated how I was a desperate person because I have to use their quirks to have a purpose. I don’t really understand why they hated me so much that they had me expelled…3 times. BUT, nevertheless I get to try to make more friends now! My parents talk to the teachers as I see a kid and then another kid then another and I eagerly run up to every kid. But each one either ignores me or greets me with a disgusted expression. Then I realize that they’re all creeped out and I already screwed up here. My smile falters a little. I still walk up to each kid that hadn’t run away yet, but I sulk while doing it but each kid still runs away.Then I see a girl with pink dreadlocks working at a crafting table thus I walk hesitantly up to her. I wave at her: She doesn’t notice me… I look at what she's making. A cardboard butterfly that was only an inch long that looked like it was moveable with a design that no normal person could make with just their naked eye. Assuming it’s part of her quirk, the pink dread haired girl suddenly gazes down at her lap. My eyes follow her yellow crossed eyes and I see she has a messy drawing, that must have been her blueprint for her ridiculously delicate design. She looked at it like it was the most organized blueprint of all time when it might as well have been chicken scratch. A thought comes into my head: what if I…

 

“H-Hello I’m Kitsune Marie… a-and you are…?”I ask hesitantly. The girl immediately stops what she’s doing, jumps out of her seat and gets within inches of my face and says ”HI I’M MEI HATSUME!!! WhAt’s YoUR QuIrCk!” She yells as she excitedly lifts her arms above her head and she twists her smile to look like the cheshire cat. Her gremlin-like enthusiasm melts away my sadness. My response rivals hers."WHAT’S YOURS?” We both giggle and say at the same time” WaNnA bE FrIeNdS! YES! OKAY!! YAAAYY!” GIRLS! You must be quieter!” the teacher reminds us.” Okayyyy.. We both say pouting a little. Then I remembered what I meant to ask her after I asked her name.

 

“Hatsmei! How would you like it if I drew your blueprints for you? You could get even more detail out of your-""Ok I love the nickname name tooooo” Mei simply interrupted. And a great friendship was formed.
~~~~~~~~~~
10 years later…
It's been a month since all the students moved to the dorms. It’s 1AM, Power loader comes up to me at my planning table. While I’m making a robot blueprint, Hatsmei is in the background messing with the new tools that just got shipped in. Power Loader says with a hand on my shoulder ”I’m sure the blueprint isn’t going to run away from you. Just take a break or better yet a full 8 hours of sleep… You and Hatsume.”. Bags under my eyes, I begrudgingly mumble something resembling a “sure fine.” I stand up and I trip over the dozens of wires that line the support course floor. Hatsmei is fidgeting with a drill bit. As I lean on the door frame. Power Loader loops one of his arms around Hatsmei to lasso her into a sleepy state and walks up to me. Hatsmei is whining saying that she can work just a bit more, just the regular excuses for her. Power loader keeps an arm under my armpit to help keep me walking toward the dorms. “I have a surprise for you if you and Hatsume get the average teenage amount of sleep…”Power loader promises with a chuckle” I think you’ll love it.”. I think: Ok maybe I will. I’ll go to bed.

 

Power loader puts both of us in our bunks. (Me and Hatsmei share a room cuz we threw a fit the day we moved in. ) “Night Students.” Power loader leaves the room. Hatsmei and I instantly fell asleep. We both woke up at 9 AM, rested and recharged. (The support course doesn’t start at 8 like the rest of the school.) We go down to the Support course lounging area and eat breakfast. All the kids stare at me and Hatsmei with excited faces , me especially. Power loader comes in, says hi to everyone and lifts up his fingers. He’s holding up 3 fingers. He does a sweeping look to all the kids, puts down a finger then another and… Everyone shouts at me and yell”U.A HAS A ANUALL ARCHERY TOURNAMENT!!!!” WhAt!!” me and Mei both shout with surprise
SO, now I am in an archery league, calm and undisturbed. The tournament takes place in the gym and you can use your quirk. The judges are Nedzu, Midnight and Snipe…All might was supposed to come but he had to do…something. The security for the event are Mirko, Eraserhead and Kamui Woods. I look at my score, a perfect score like normal with one more shot to make a dramatic U.A. record. “The first 1st year to have a perfect score.” I know I can hit the bullseye manually. Everyone knows what my quirk does, so in one eye I have a one pro hero Snipe themed contact so my eye looks like him. In the other eye I have Hatsmei themed eyes so I can see the smallest details in the target. I also have Mirko ears because I just wanted to show my quirk to the judges and security. I don’t activate Snipe’s “Homing” though, for dramatics. I hear the whole support course on the sidelines, cheering me on. I take their support, lift my bow, zone out all the noise, aim anddddd…
Then I hear something, it’s faint. It’s something unfamiliar. The real Mirko’s ears flare up 1st then mine do…we realize it’s an attack!!!
I hear a section of the ceiling disintegrate and something falling through the air. I activate Homing and I let go of my arrow and it curves upward and shoots backward and hits whatever is dropping the sky right in its vitals. Sludge groans as it falls to the ground. Twice's quirk! It’s the League! What are they doing here?!
Tomura yells down “Ahhhhh Damn it all, All Might’s not here! Ughhh!” That brat told us that All Might would be here!!!. Ugh, Whatever, now where is that one with that costume/nerd quirk?…”

 

I stare at the villains with a dumbfounded look. “Ww-hat? ”

Chapter 2: The Power of Nerdssss

Notes:

To recover from total overuse of Cosplay, Marie needs her muscles to subconsciously move. So if she is stiff as a pole and she starts to cry or laugh involuntarily, her muscles start to shutter and jitter she can recover from the overuse faster. Only Mei and Power Loader know what happens to Marie when overuse happens and they are also the only ones who know how to help her. The less people know the better. Also fun fact: Marie has a fidget when she's deep in thought. She flares her nose. She can’t help it. People can take advantage of this as well.

(See the end of the chapter for more notes.)

Chapter Text

All the U. A. Faculty and audience are in complete shock. Since the ceiling was pretty much non-existent you could see all the Nomu that came cascading over the wall. “Ohhh! There, Shiggy! There she is…” Toga said with excitable creepiness as she pointed at my position.
Her finger stops me in my tracks. I try to reach for another arrow but my hand is frozen. Why can't I move!? Am I that terrified!? No it's not just that…HatsMei’s power isn’t activating!, I overused my dang quirk! I knew I showed off too much. I can’t move! I can’t-!

 

Immediately after my realization, Aizawa, Snipe, Mirko, and Kamui barrel in between me and the league; fighting off the Nomu with the best of their ability. Midnight, Power Loader, Nedzu and… HaTsMeI!? All 4 of them ran to my aid. All the teachers except Power Loader tried to get Hatsmei to go back. “Hatsume Go! You're a support course! Get back! It isn’t safe for you!” Midnight tries to put HatsMei to sleep but she uses her chaotic charm to get out of that problem.
”NOPE UH-UH NOT HAPPENING NoNe Of YoU TeAcH’s gOt nO IDeA hOw To HelP hErRrR!” She lifted 2 of her dangling dreads to her nose and mouth and used them as a makeshift breathing mask as she pulled an Olympics level mid-air front flip that went right over the teacher’s head and their quirk. She dodged the well intentioned teachers' attempts to stop her; fueled purely by her snarling gremlin energy. It was truly a hilarious scene. I giggled a little.

 

She made her way over to me and stopped. She leaned into my ear and whispered dramatically “Remember, the Popcorn Abs scene in Kpop Demon Hunters…Y’know… So HOT” Mei purposely fails to imitate Mira. I start to involuntarily laugh and snort. My muscles tense up then they calm down over and over in a cycle. Like clockwork, I’m able to slowly move my body again! Yay! I take off my useless Mirko ears to not waste my now very limited energy. After that, Me and Hastmei share a short nod and I quickly take out the HatsMei contact, put it in its contact case and at that point I replace it with the other “Homing” contact.
First, Me and Mei held hands to support each other as we used our support gear attached to our waists to get a better view to assist the heroes. Midnight and Nedzu still tried to stop us but by then Power Loader understood what we were doing so he convinced the other faculty to trust us. They stopped. From both sides of our hips grappling hooks fly out and attach themselves to a piece of wall that is above us that has not been completely destroyed yet. It also helped that it was on the other side of the room. Now since we were so far from the actual fight I couldn't see the villains as clearly as I would like to. We’ve practiced this duo scouter move for years. How it works is…HatsMei uses her Zoom quirk in her eyes to keep track of where the enemies are so she can help protect me from an ambush. I activate Cosplay and my cheap cardboard bow that I used for the tournament transforms back into a professional made bow. I pull out a few hairs of my dyed purple and pink curly bangs. The instant I touched them they twisted themselves from stray pieces of hair to Lady Nagant quality bullet material. With Homing in full effect, I can use a mulit-target attack on the villains so it can accurately hit all of them.

 

I fire off 3 consecutive multi-shot attacks. The league doesn’t expect the sudden support when arrows as fast as Ingemium tear through their clothing and pin them to the wall. Toga yelps ”Agh! OW! That hurt!” Twice is fighting through a panic attack because I purposely targeted his stitched head. I didn’t cut him open, I just needed to scare him so he couldn’t think straight. Mirko is too busy fighting the nomu as Eraser fights Shigaraki. Midnight Nedzu and Snipe help with evac. I even managed to catch Shigaraki off guard. HatsMei nudges me on my left shoulder. “Hey Arrow, Why do you have one of yer' arrows just flying around?” I tilt my bow down and turn to face her “What?” The targets in her eyes constrict as she turns on zoom and points at the stray arrow then she gazes at the weapon. I follow her line of sight and I tilt my head in confusion. The arrow is just floating around… going in random directions. My nose flares as I try to figure out how that’s possible. I feel light like the floor disappears. I drag my eyes down and I see mysterious black smog.

 

“KUROGIRI!!” I realized a moment too late. We both begin to fall into the colorless void. Falling for a few seconds, together we see the void immediately we look down to where we’re falling. That would be right in the teleporter's lap ready to snatch us. “NOPE NOPE NoPe!! ” The chorus of our panicked voices repeats the same sound. I feel my leg cinch up and I feel my bow fade back to being cardboard. My quirk! I’m overusing it again… Not now! Not Now! I stressfully think. Mei noticed that moment. Mei flips on her support gear, both side hooks loop around a pipe on the side of the portal without any villains. She locks her arms to my gut to pull me up. In some way of defiance to give Hatsmei a chance, I sloppily draw my bow, tug an arrow made out of my hair” I manually fire off a 1 single arrow in the crappiest archer pose you can think of. My projectile hit just above my target. I missed it!? How I could have missed my nose obnoxiously flared again as I could feel all my limbs go stiff as a tree. I completely turned into the equivalent of a vegetable.

 

I feel heat and smell smoke coming from our escape out of the portal dimension. DaBi?!” HatsMei! They’re cornering us! Watch out!” Dabi jumps into view in our one safe spot. His right arm is lit with blue flame. Mei used her momentum for her gear to leap out the portal, kicking straight in the face. Dabi in the face. My potato sack of a body was completely helpless as HatsMei gently placed me leaning on a wall. Toga jumps on Mei’s back. She was attempting to choke her out! Dabi spots me alone and runs for me with wild eyes.
Kurogiri’s portal is still there like a tram waiting to be filled with passengers. Dabi stops in front of me and proceeds to carry me bridal style and casually jump through the portal. Toga notices the quick getaway and retreats in the same way.
Mei never relaxed, even after Toga let up. She practically snapped her neck to see where she left me but then she felt something rough wrap around her forearm. She turns around and she sees Aizawa. He uses his capture weapon as a way to stabilize her because after her catfight she could hardly stand. He asks “Where is the support course archer friend?”
“I-I -I don’t know.” Mei responded hesitantly, already sobbing.

Notes:

YESSS I am a KPDH fan so yes Mei and Marie have watched it. And they loved it so much they forced the rest of the support course and Power Loader to watch it. Also for Cosplay to work on a prop the idea of the prop can't be an original design made by Marie. So Marie has Mei “help ” with the designs to cheat the rules of her power. Like if Marie was to make a sword she'd have to use an already existing design for that sword She can't make an original design for her power to work. And she has to be knowledgeable on all heroes and their support items so she can use their powers as well. And the gear that the girls use in this chapter is a complementary device for all the support course and looks and is based a lot on Attack on Titans ODM gear (not the blade part but the mobility part of the device .

Notes:

Shinso gets to go to Class 1-B BTW ;) This is my first fanfic sooooo... If any of you have any tips please give me them please.