"McSplode! Blast me!" Mei shouts as she slams open the door to the 1A classroom. It's the third day of school shortly after lunch. She's wearing some kind of contraption on her shoulders over her uniform. Several people start talking at once.

"Gladly!" Katsuki moves to comply.

"Can't this wait till after school," Izuku mutters.

"We are in the middle of class, Hatsume!" Iida reprimands.

"Now hold on a minute!" All Might tries to stop the events that are unfolding, but it's already too late. Katsuki sets off an explosion that throws Mei out of the classroom and leaves the doorway singed and a bit broken. As the dust and smoke settle, the students gather around to see the results. Mei is kneeling on the floor, coughing. "Are you alright young lady?" All Might asks as he goes to check on her.

"Excellent!" Mei shouts as she leaps to her feet smiling. That's when everyone notices the breast plate. It's semi translucent and hovering a couple inches in front of her. "It deployed immediately with no delay. It managed to dampen the impact of the shockwaves from the explosion as well as protect me from the heat. Like I speculated though, its still weak against physical impact. The back part deployed but diffused upon hitting the wall." As she spoke she fiddles with the deviance on her shoulders and the armor disappeared.

"That's so cool!" Hagakure shouts, breaking the silence of the class. The rest of the students erupt into questions.

"Was that a force field?"

"Who are you?"

"Are you from the support department?"

"That didn't seem very safe."

"Everyone! Settle down!" All Might manages to get the class quiet before turning back to Mei. "Now are you sure you're alright, Miss…?"

"Hatsume Mei, support student, at your service! Now if you'll excuse me, I have some improvements to make!" With that she leaves, heading back to her own classroom.

A couple days later she comes in during their homeroom.

"Good morning Class 1A!" She says as she throws the door open. "Woah, why is your teacher asleep?" Aizawa is passed out in the front of the room in his usual yellow sleeping bag. Eri had been trying to wake him, but is now hiding behind him, eyeing Mei suspiciously. "Anyway! McSplode! I finished them!" She waves a briefcase in front of her.

"All right!" Katsuki walks over to his desk and dramatically opens the case. Inside are two grenade gauntlets, nearly identical to the ones on his hero costume but without the large metal protrusions.

"I know you said you liked the look of the ones you have, so I tried to keep it similar. These ones are lighter, but just as tough. I've vastly improved the shock absorption, while maximizing the storage capacity. I've also made it so you can widen or narrow the range of your blasts by turning this part." She demonstrates. "I've also added a voice command to set it off in case you can't pull the pin. I'll have to set it to your voice later though."

"Hatsume!" Iida stands up. "I hardly think this is the time to-"

"Engine!" Mei interrupts him. "Don't worry! I haven't forgotten about you! I'm working on something for you and Zero-G!"

"Oh?" Uraraka says in surprise.

"That is very kind of you, but that is not what I-"

"Come by my shop after school!" She says as she leaves.

They get another visit from Mei later that day in the middle of English.

"You! Invisible girl!" Mei shouts as she enters the classroom.

"M-me?" Hagakure stamers in surprise.

"Woah! A surprise guest! Can we get your name, young lady?" Present Mic asks. Mei ignores him as she runs over to Hagakure's desk.

"Is your hero costume really just boots and gloves?" Mei asks, uncomfortably close.

"Y-yes," She answers, an unseen blush creeping up her cheeks.

"Excuse me?" Present Mic tries to get her attention.

"And what exactly is your quirk?" Mei asks

"Light refraction." There are a few small gasps of surprise from the the other students. They had all assumed her quirk was just invisibility.

"See me after school," Mei says with a smile that does not put Hagakure at ease.

Toru waits at the gate with Midoriya and company. She's a bit nervous about meeting with the pink haired support student, and is glad her classmates are their too.

"So, I take it you guys and Hatsume are are pretty good friends?" Toru asks the group.

"Actually, Deku and Katsuki know her a lot better than we do. Iida and I only met her this week," Uraraka answers. "Not that I'd be a posed to being her friend," she quickly adds.

"Yes. Though quite intense at times, Hagakure seems rather nice. Though I wish she would stop interrupting our classes," Iida adds.

"I see. Why do you think she wants to see me?" Toru asks the other two boys.

"Tch. Why should I care?" Bakugo replies. Toru makes a sour face at him.

"Based on her questions earlier, it's clearly about your hero costume," Midoriya answers. "No offense, but it doesn't seem very safe."

"I know. And honestly it is a bit embarrassing. But what am I supposed to do? Wearing much more kind of defeats the point of being invisible!" She complains.

"But your quirk isn't invisibility?" Uraraka asks. She's still a bit surprised by that.

"No. And technically I'm not invisible. I'm transparent. Super super transparent. If you look closely enough you can see the slight distortion where I am." She holds her arm up for them to look at. Uraraka, Iida, and Midoriya stare at it intensely for several minutes, slowly getting closer and closer.

"Ah!" Uraraka jumps back in surprise. "I see it!"

"That is so cool!" Midoriya says still staring at her arm. Iida steps back and takes off his glasses to rub his eyes. "Can you control how transparent you are?"

"Yeah." She demonstrates, slowly becoming more visible. There's no color to her, more like distorted glass. Then she returns to her normal, almost invisible self. "It takes a lot of effort to stay that way though."

"Hey!" They all turn to see Hatsume running towards them. "Glad you made it Invisigirl!" She says when she gets close.

"Woah," Toru explains when she sees Hatsume's workshop.

"Impressive, right?" Hatsume asks. She's leaning back in an office chair. She sends Midoriya and Bakugo upstairs to test some things, then turns to the remaining three. "Please feel free to have a seat. We have much to discus." She rolls over to a table. They drag three chairs over and sit down.

"So Hatsume, why are we here?" Uraraka asks.

"Call me Mei. Or Goggles if you prefer. I've been looking at the designs for your hero costumes," she starts.

"How did you get those?" Iida asks, indignant.

"It was an assignment for class. Anyway, I noticed a few things that could use improvements. Zero-G you need weapons. Given your quirk, projectiles would be best. I've come up with a few possible designs for you to look at." She rolls over to a table and grabs a few blueprints, then rolls back. The top blue print is for a helmet. "Also you need an actual helmet. Especially if you plan on flying around at all. I've incorporate the visual design of your current visor, but made it a bit more practical."

"Wow Mei!" Uraraka takes the blue prints from her and quickly glances at them. All of the weapons seemed to be designed with her costumes aesthetic in mind. "This is incredible, thank you!"

"It's what I do," she says nonchalantly, but she is clearly pleased but the reaction. "Now for you, Engine," she says turning to Iida.

"While I appreciate the thought, I'm perfectly happy with my costume as is," he says, putting his hand up in a stop gesture. Mei isn't listening though as she grabs more blueprints. "Would you listen to me!" He starts chopping the air in frustration. Toru giggle at the gesture.

"I can tell you took inspiration from Ingenium," she says as she comes back to the table.

"Why, yes. He's actually my brother," Iida says proudly.

"Cool!" Toru exclaims.

"But frankly, your suit is boring," Hatsume continues. Iida looks offended. "You have a full body suit of armor with no tech. You at least need night vision and an air filter for the helmet. I'd also recommend a system for monitoring your vitals."

"Thank you Hatsume, but I really don't need-"

"And a cooling system is a must!"

"A… what?" Iida asks in surprise. Hatsume smiles. She's clearly caught his interest.

"A cooling system for your legs. I imagine they must get overheated sometimes." She hands him the blueprints. He takes them and starts going over them. Hatsume turns to Toru. "And now for you," she says with a gleam in her eyes. "Follow me."

"Oh! Okay," Toru says. She stands up and follows Hatsume to a table covered by a cloth, at the back of the workshop. There are lumps in the cloth indicating things underneath. The cloth itself has a weird, shimmering quality to it.

"Ta-da!" Hatsume shouts as she pulls the cover off with a flourish.

"Um. Glass?" Toru asks in confusion. On the table appears to be glass in all sorts of different shapes and sizes. There is also something that looks like a large tablet with diagrams on the screen.

"Not quite." Hatsume picks up the tablet and starts pressing things on it. While she does that, she explains. "This is a cloaking technology that I've been working on for a while. What looks like glass is actually a transparent, bullet proof, shatter proof polycarbonate. Inside is an intricate circuit system, basically controls the transparency of the material." With that she sets the tablet down and the things disappear.

"Wow!" Toru feels along the table and picks up one of the pieces. If she looks closely she can still make it out, but only barely. "This is amazing!"

"I know. Unfortunately it's a long way from being done." She presses a button on the tablet and the things appear on ace more. She picks up one shaped like a box, opens it, and drops a marble in it. Then she makes them disappear again, but the marble is still visible. "My goal is to get its to refract the light around it so that the object inside will be hidden. But for now it's perfect for you!"

"That awesome, but I don't think a whole suit of armor is my thing," Toru says. "But a bit of armor would be fine!" She quickly adds.

"Ah, but you need a full costume! That's what this is for!" Hatsume says and tosses her the cloth that she had dropped on the floor. She fiddles with the tablet again. The fabric becomes transparent. It's not quite as invisible as the 'glass' though. "It's been proving a bit more difficult than the hardware, but with this," she plucks a few hairs off of Toru's head.

"Ow." Hatsume rubs the hair in her hands. Toru notices the crosshairs in her eyes shift.

"I should be able to fix that." She smiles at Toru. "You can handle the visual design of your costume of course. I have colored pencils and paper everywhere around here. Feel free to use some. Once I've got this fabric done, it won't take long."

Hatsume becomes a frequent visitor to the 1A classroom, much to the annoyance of some of their teachers.

"Aizawa, you can't really be okay with this?" Mic asks.

"Who cares?" Aizawa shrugs "She never stays long. As long as she doesn't cause any damage to the classroom, it's fine."

"I understand Hatsume's drive," Midnight starts, "but it hardly seems appropriate to interrupt their classes."

"Isn't there anything you can do Powerloader?" Cementos asks.

"I've stopped trying to contain her. Like Eraser says, as long as nothing gets broken, its best just to leave her to her own devices."

About two weeks after the visit to her shop, Mei interrupts their foundational heroics class again.

"All Might Sensei! I need to borrow three of your students!" Mei, looking a bit more frazzled than she had the first week, doesn't wait for a responds as she drags Iida, Uraraka and Hagakure out of class.

"Meet us in your hero costumes when you're done!" All Might calls after them, not bothering to try to stop Mei.

"Now presenting!" Mei's voice catches the attention of all the students. They are at the entrance to the forest battlefield. They all turn. "The new and improved costumes of your classmates!"

"Young Hatsume, I really don't think this is necessary," All Might tries to reason with her.

"First, Iida Tenya!" Iida steps out, surprised that Mei had used his real name. His costume looks the same and this earns a few quizzical looks. "In this one, it's what's on the inside that counts! Sporting the same look, I've added nightvision, air filters, vital monitoring, improved movement capabilities, as well as added quirk specific features!"

"Cool!" Someone shouts. Iida does a quick lap around the group before joining his classmates. Some start to ask question, but Mei interrupts them.

"Next, Uraraka Ochako!" Uraraka steps out next. Instead of her pink bracelets she has gauntlets that start at her elbows and get wider as they go toward her wrists. She has a full on helmet that looks like a cross between an astronaut's and a biker's. It's still pink like her old headgear. "With increased protection, her helmet also has night vision and air filters. Her belt has been converted into a storage unit that holds her new projectiles."

Uraraka presses something on her belt and a panel slides open. She removes some small disks from her belt. She opens a panel on one of her gauntlets, and slips the disks into it. She aims at the sky and the disks launch in rapid succession from an opening above her wrist. They explode in midair. Then she joins her classmates as well.

"And last but certainly not least, Hagakure Toru!" She comes out. Her costume is a mix of pastels. The main part of her suit is a grey with pink stripes on the sides. Pink also adorns her elbows and knees under clear pads. Her blue socks and gloves match the blue fabric under her clear chest plate. She wears a skirt that has a shimmery quality and seems to shift between colors. Her boots are white and go almost up to her knees. She wears a visor across her eyes with wing like decorations on the sides. "Like the others, her visor has night vision capabilities. Her boots suppress sound. The panel on her arm tracks her vitals. And most important of all!" She makes a grand dramatic gesture. Toru presses a button on the panel.

"Woah!" The entire class gasps as Toru disappears.

After the the presentation ends, the other students swarm the four of them. Some want to see the new costumes in action. Others talk to Mei about getting upgrades to their own costumes. All Might can't help but smile, even as his attempts to start class fail.

AN: Big thank you to iidasengine on tumblr for letting use there Hagakure costume redesign! You should all check it out!

post/174998097288/theres-tons-of-momo-redesigns-out-there-and-i