Here it is, the sixty-sixth full chapter of Miraculous Quirks released at the set time I promised each week. Not much to really say here other than that this is another chapter like Marinette's internship chapter that is slightly retroactive as most of it deals with stuff before the events in the second half of the last chapter though this is due to the events of both taking place over a few days so it kinda has to be like this and I wanted Marinette's detention to get its own chapter as a fair bit happens during it. Anyway, that is all the administrative stuff I have for now though and as there are no review questions to answer or guest reviews to respond to I will end this note here. Do keep the reviews coming as I enjoy hearing from y'all. Now, though, it is time to sit back, relax, and enjoy the 66th full chapter of Miraculous Quirks.

Disclaimer: I do not own either of these great works of fiction

Chapter 66: Detention in the DS

Marinette hurried to the Development Studio as soon as she was done changing into her PE kit after their hero lecture. She'd not been back since her temporary ban from it but now was the first of what would be 5 days of after school detention there under Power Loader.

Once that was over her ban would be lifted and Marinette would be allowed back in if she should desire to visit for costume improvements and Marinette did hope to be back there when she had the time. What little she'd seen of the Design Studio had intrigued her and she wanted to know more about the place. Well, she did have detention there now, so this was the perfect time to learn at least a little bit about it.

She couldn't deny that her detention was justified. Marinette had tossed Mei Hatsume, a Support Course first year and apparent prodigy, across the room twice in her only time there. Admittedly it was because Hatsume had invaded first Adrien's and then her own personal spaces and felt both of them up despite neither allowing her to do so but still it was unacceptable to act like that and Marinette had accepted her punishment. Hatsume would be joining her in the detention as she'd acted against Power Loader's orders as well so maybe she'd get to know the rather eccentric and strange girl more.

Adrien had explained some of what Hatsume was like before the licensing exam as he'd had to work with her to make his new support item. That was mainly because she was actually the only student allowed to work on improvements for the French pair due to the nature of their costumes, a cover story but one that was being stuck to so as to avoid the truth of their costumes from getting out.

As far as anyone knew they were special costumes made by Technus, the top support gear and costume maker in Europe. He did actually have costumes that worked like the way Mage had reworked the Miraculouses to work and had a costume contract with Francois Dupont along with many other top European schools. Add in that Technus was actually the Guardian of Technology and, well, it all worked out well for the French pair.

Of course, it came with the caveat that due to the proprietary nanotechnology that Technus used only he, or someone working for his company or under his express permission, could make alterations or additions to his costumes. Thankfully, he'd actually been at the Sports Festival and been so impressed by Hatsume's skills and mind, the girl did get to the top 16 due to a mix of her inventions and self-interest making her the only Support Course student to get past the first round, that he'd offered her a chance to earn a job with him.

Marinette wasn't sure how much of Technus's plans were due to helping her and Adrien's covers, she hadn't actually met the man yet, and how much was independent of that seeing as Technus was planning an expansion to Japan. Certainly, some of it was part of their established cover story as he'd partnered with the Agreste fashion line to help break into the costume side of the market, but he was recruiting from the top programs for his support gear side, so it wasn't at least partially personal.

Of course, Technus was also dealing with a new partner in the Tsurugi family, brokered by the Yaoyorozu family, but that was more due to Momo's independent actions needing to be covered than anything else. It did speed some things up for Technus though, according to Mage, so he wasn't complaining about the new arrangement apparently.

Whatever the case, Technus had decided that Hatsume would be one of his first potential recruits, a big deal for a still active student let alone a first year, for when he fully entered the Japanese market in a few years' time. Right now, all he had done was work with the Agreste brand to set up a major store in Tokyo, run by someone of his own choosing who Mage assured them was in some way associated with the Guardians and serving multiple purposes in Japan, and made contact with the Tsurugi family for their air, but clearly Technus was doing his own thing as well.

One of those independent things was to apparently set Hatsume a series of tasks or tests that she had to pass in order for her to get the lucrative and prestigious offer that was on the table. It was something that made sense in the support gear world apparently as, just like in the hero world, someone had to prove their worth and earn their place in it. The first of those tasks had been, unbeknownst to either Marinette or Adrien, to make an item that fit with their costumes and could pass his approval for adding to them. To do so she, and she alone, had been granted the right to add to their costumes.

As such, when Adrien and Marinette had shown up in the Development Studio looking for an item for Adrien as he had one on mind, Hatsume had been thrilled and jumped on it with her usual enthusiasm and lack of social grace that had led to the first toss. Her continued lack of it with Marinette had led to her second throwing and detention, along with Marinette's detention and brief ban. After that though she had apparently calmed down and worked with Adrien to create his new mask thing, something Technus had clearly approved of as it was now a part of Adrien's full-time costume and really useful to him.

Marinette for her part hoped to make up with Hatsume and get to know her better. If she was to one day enter the world of the Guardians, even if she would likely never know the truth about them for few who worked for them in such capacity apparently did, then Marinette would need to be friends with her. This was a great time for that, as would the next 4 days.

Well, it may take longer than 5 straight days. Power Loader had sent Marinette an email that morning detailing how the timing would work. Due to the nature of the Hero Course, students there had 6 days of school not 5 as the afternoons were for hero lessons while mornings were normal classes but a normal school week was 5 days so Marinette would have that many days of detention. However, Power Loader was a pro himself so he knew that a hero student could get injured and as such miss a day so Marinette would have to make it up if she got hurt in training.

That was unlikely given Marinette's enhancements, but she knew it could happen given her injury history, so she understood that. She also understood why she had to wear her PE kit for detention and not her school uniform. This was detention in an active Development Studio that was very volatile, so the school PE kit was best for her to wear while helping. That was why Marinette had changed into it after their hero lectures were over for the day, they were only doing class lectures today, and gone straight to the Development Studio.

The rest of the class had returned to the dorm to relax and enjoy the afternoon as they recovered from the intense day of classes and mentally got ready as starting tomorrow training would resume at a harsher level. Of course, they couldn't say anything to the house arrest pair about anything they learned, that had been the last thing told to them as they left the classroom for the day, and with her detentions Marinette wouldn't be able to anyway.

Yup, that had been the biggest surprise that morning. Apparently, the night before while Marinette, Adrien and Momo were talking with Mage about the work study program and he was making an offer to Momo for it as well as the one that he'd already made Marinette and Adrien, pending school approval, Bakugo and Midoriya had thrown down at Ground Beta causing Mage to quickly send them back to their rooms as soon as he was informed of the situation.

It appeared that Bakugo had started it and as Marinette now knew, through a cryptic text from Mage, it had been because Bakugo had deduced Midoriya's Quirk out. That had been the cause of it all and along with a lot of pent-up frustration that reached a boiling point with Bakugo's failure in the licensing exam had led to the brawl the pair had engaged in.

That also meant that Bakugo now knew of One for All, something Marinette and Adrien only knew about due to their own unique circumstances, and as such was in the know of All Might's secret. That could be interesting in the future as one day Midoriya, and by extension Bakugo now, would learn of Mage and the Guardians' true nature, and as such might learn of Marinette and Adrien's past as well. That was in the future however, but it was something that Marinette now had to be ready for just in case.

For now, though, she had detention to start as she'd finally reached the steel doors of the Development Studio. They looked sturdy to her, but she knew from Ochaco that Hatsume could blow them off their hinges with her experiments with relative ease. Still, Marinette was sturdy, she could handle it just fine and with a deep breath she slid the door open and walked in.

"Ah Dupain-Cheng, on time as expected." Power Loader said from his work desk as Marinette entered and surveyed the room, it was just the same as before. "Good."

"Yes sir." Marinette said with a small bow to the teacher. "I am here for my detention. What would you like me to do?"

"There are a few things for you to do but I have a few questions first just in case I need you to help with things that might require your Quirk or abilities." Power Loader said. "And I'd like to ask them before Hatsume gets back."

"Huh." Marinette said looking around and realizing that the pink haired girl wasn't around which was actually rather odd given how Hatsume practically lived here. "Where is she?"

"Taking her latest batch of failures to a store shed on the grounds." Power Loader said with a sigh. "With her now in the dorms, she's here all the time so her inventions pile up really quickly. That whole pile there is hers."

Marinette turned to a corned that Power Loader had suddenly pointed at, and her eyes went wide. Piled almost to the ceiling was a mound of what had to be inventions, many of which Marinette didn't even have the faintest idea about. It seemed that the support girl was extremely productive with her inventing.

"Those are all hers?" Marinette asked.

"From the last few days yes." Power Loader said shocking Marinette even further. "So, her job during detention is to sort through it and anything that is broken, beyond her current skill level to fix or finish, or not a main priority is to be removed and sorted before being taken to one of the storehouses out in the woods that I have set up for all my students even if Hatsume takes up the most space in them. The ones she does intent to keep active she can leave here but she can't work on anything during the detention period, that is the biggest part of her punishment for the next 2 hours, which is how long detention will last. Dinner time will be the end of it."

"I understand." Marinette said with a nod of her head. "And what questions would you like to ask me sir?"

"Right, that." Power Loader said as he turned to his monitors and typed a few things in pulling up Dupain-Cheng's records and information including a more in-depth analysis of her skills, enhancements, Quirk, and her records from France that only the teachers had access to though of course Power Loader didn't know that the French records were falsified by Nezu and Mage to protect her secret. "First off, your level of durability, how high is it? I have a sense from your records, but I want your own impression of it as you alone would know your body best."

"It is above human average for a human without a durability enhancing Quirk but not at a level that would be considered a Quirk." Marinette said. "So below what say Kirishima or Tetsutetsu would have if their Quirks were active, but it will take some force to injure me. The term used for what I have is an enhanced constitution due to generations of Quirk Marriages breeding it into the family as a baseline for us that our Quirk is on top of. The actually Quirks in the family are considered strong ones though."

"Yes I reviewed your match with Todoroki in the Sports Festival and made some calculations on that based off what I could determine and his own heat records at the time." Power Loader said as he reviewed the information he had and concurred with Dupain-Cheng's assessment. "Which is good because that means that you can help in some areas that I'd usually have to have a student wear a bulky suit with. Not all, just what I think you can handle and nothing that would melt your clothes but that won't be until tomorrow at the earliest as I want to start you out with the basics of what I want from you today."

"Good, I don't want to deal with that again." Marinette said. "Though I am told that I am now being provided with more flame retardant PE kit, as is the rest of us, after what happened to me in the Sports Festival."

"Good to know but the main thing for me is your durability and the fact that you can do things others can't with it." Power Loader said. "Add in your size and clearly high level of dexterity and that will help."

"I am here to serve my punishment so I will do what I am instructed so long as it isn't dangerous." Marinette said. "So, if I can help I will do it."

"It won't be." Power Loader said. "Now next question, your raw strength, I take it that it is like your durability, correct?"

"It is, same with my stamina and I make sure to eat a high protein diet to help with it along with regular workouts to increase my strength and stamina." Marinette confirmed. "All of this is a byproduct of the years of Quirk Marriages in France but one I don't mind. I am stronger than what the strongest human would be without a Quirk but not as strong as a power up Quirk like Midoriya or Sato's in my class. Adrien is stronger than me, that is simple biology, but I am naturally strong. That is one of the things that is factored into my costume as well."

"Good that will help a lot as you can help more than a normal person would." Power Loader said glad for the information as it would certainly be useful for what he would ask Dupain-Cheng to do. "Lastly, your Quirk. I've ready your records, but a person knows their Quirk best so explain to me how Lucky Charm works exactly."

"Honestly there are parts to it I don't understand but I can certainly tell you what I know from personal experience." Marinette said. "Basically, I can create an item out of thin air that will accomplish the task I have set in my mind, and it doesn't fail in doing so provided that I have the time to figure out how the item works."

"How so?" Power Loader asked, it seemed that Dupain-Cheng's Quirk was more nuanced than he'd expected.

"Basically, when I make an item I am making it to accomplish a goal I have set in mind such as say capturing a villain." Marinette said as she figured out how to best explain it. "But the item itself may not appear to be for that due to how my brain works, I am not a linear thinker and tend to see the goal but not how to get to it. If the task is complicated or the item has an unclear purpose I have to pause and focus. When that happens my vision turns to gray and the order of what I have to do lights up to me and I know how to use it. From there it is just applying it but once that is in motion it will succeed. At least that has been the case so far."

"Huh, that is one of the more intriguing Quirks I have ever heard of." Power Loader said as he began to understand it more. "And a deceptively powerful one."

"It is a powerful Quirk; I know that though since starting U.A. I've started to realize that its even stronger than I'd once thought, but it is limited as well." Marinette said and when Power Loader didn't interrupt her she continued. "For whatever reason, likely due to how strong it is, it requires a lot of energy to work and as such I can only keep the item active while I have the energy reserves to do so and that is directly correlated to my own personal fitness. At first it was 5 minutes, now, unless it is a big and complex item like my ultimate move, I can keep it up for 20 to 30 minutes depending on the item, whether or not I change it during my time limit, and whether or not I eat during the period."

"I see so food is a source of fuel in a way, Agreste explained that his is similar hence the specific requirements he had for his support item." Power Loader said with a nod. "And you have that on you I take it. Some of what you are going to be asked to do may require the creation of an item."

"I do." Marinette said patting her pocket where she always made sure she had a stash of her recovery cubes. "Technus developed the special protein cubes for Adrien and myself, as well as a few friends of mine back home as this kind of limitation is not uncommon in France, so I can recharge pretty quickly if necessary. Today we didn't have practical training but in the future I will so it may be hit or miss."

"How so?" Power Loader asked. "Your records do indicate that you need to recharge but that is really all it mentions."

"The more I train my stamina the longer I can use my Quirk, and the more I push it, but it comes at a price." Marinette explained. "The drawback to surpassing my limits or overusing my Quirk in quick succession is that the recovery time can be longer before I can use my Quirk again. I eat a lot to compensate for this, as well as continuing to improve my stamina and raw strength, but if our training really picks up then I may only be able to make one or two items at most during detention. Of course, that will not stop me from trying if need be, this can be as much training as training itself."

"In some ways it will be, and I expect as much from a U.A. student." Power Loader said as he processed what Dupain-Cheng had said. "Alright that's enough for me, I understand how your Quirk and attributes work now and can work with it."

"So do I but I have more questions for you as well." A new, familiar, voice said from behind Marinette causing her to jump and twist in the air, going halfway to the ceiling thanks to her strength, as she saw a grimy, smiling, Hatsume standing right behind where she'd been and beaming at her as Marinette fell to the ground only her training preventing her from landing in a heap. "Mainly about you costume and the item it is in. I've heard how Technus stores his costumes, but I haven't gotten to look at one up closely to see how it really works. Is it on you now?"

"It is." Marinette said warily. "Unless I am required to not have it, be it for something like the Sports Festival or for when it needs to be serviced, I always have it on me."

"Really can I see, please, please, please." Hatsume said suddenly right in Marinette's face grinning at her. "Your boyfriend wouldn't show me his as he was in his costume at the time, so he couldn't remove it for me to inspect it, but I want to see how they look and work if I am to one day assist in making them. The level of technology is unreal, not even David Shield is on par with it right now. It truly is one of the top pieces of tech in the world today. Come on show me. Where is it? What item do you use for it? Tell me."

"Hatsume." Power Loader said a stern note in his voice. "You are here for detention; it is time to serve it. As is Dupain-Cheng and if you recall you are both here because of this bad habit of yours the last time you two met."

"But I want to know, and we are here together." Hatsume said turning to her teacher and sensei. "It's the perfect time to learn."

"And you have punishments to serve first." Power Loader reminded her. "That is what it means to be punished, you can't do what you want to do during that period."

"Hatsume, I'll make you a deal." Marinette said putting a hand on Hatsume's shoulder to get her attention and keep the other girl at arm's length just in case. "I'll show you my mir…my costume in its closed form, for various reasons I won't activate it here, so I won't show you that, after we've done the day's detention…"

"Really?" Hatsume said turning her head so quickly to face Marinette that Marinette thought the other girl might get whiplash from the move. "You mean it?"

"Yes but on a one main condition." Marinette said as her blue eyes bore into Hatsume's odd golden eyes with what looked like a crosshair design on them for some reason that Marinette assumed had to do with the girl's Quirk whatever it was. "You don't distract me from my punishment and do your own in a like fashion. We do have detention to serve so we have to do that first. I do want to apologize for what I did before, and this is a way to make up for it but let me serve my first detention in peace. Then, afterwards, you can see it, but I am not going to take it out."

"Ok I can do that and apologize for what?" Hatsume asked confused.

Marinette just blinked in surprise at the girl. Apparently she'd forgotten what Marinette had done to her that had landed Marinette in this detention in the first place. That was not normal, but she chalked it up to the support girl's overactive, and easily distracted, mind and left it at that. At least now Hatsume was mollified, and Marinette could turn to Power Loader for her first task.

"What do you want me to do sir?" Marinette asked. "I'm ready to get to work."

"Hatsume get to what you are to do, you know that already." Power Loader said and Hatsume did that with a strange spring in her step now that she had the motivation to do it with what she'd finally see at the end. "As for you Dupain-Cheng, follow me. We need to go deeper into the studio for today's tasks."

Marinette just nodded and followed Power Loader deeper into the studio where heavier machines were, all mercifully off, as he led her to one that needed cleaning before it could be properly serviced by him. He explained what he needed her to do, it was up to Marinette how she did it with the cleaning materials provided and her own Quirk should she deem it necessary, and what she was to do next if she finished before dinner time. Marinette just nodded and set to work while Power Loader went back to supervise Hatsume, aka make sure she actually served her punishment, and do his own work.

2 hours later

Marinette wiped the sweat from her brow as she flipped over and fell down to land lightly on the ground. She was tired, sore, and greasy but she couldn't really complain. It was her own fault that she was here in the first place, so she'd gotten to work as soon as instructed and began cleaning the large machine that Power Loader had told her to clean.

Her job during her first day of detention had been simple, clean the machines of grease and dirt that naturally built-up during use. She wasn't qualified to turn them on or do anything more than just clean, but these were machines for making support items, so they got dirty easily and needed constant cleaning to avoid any serious issues. As such Marinette had taken the supplies she'd been given and done just that.

Power Loader would come in from time to time to check on her progress, which was considerable as she could put more strength into her work than most so even stubborn grease and dirt was cleared faster than usual so he continued to help point out what she had to do. When she was done with the first machine to his satisfaction, she moved onto the next one that required Power Loader to open it up so that she could climb in and clean the inner workings of it, after he reassured her that it would be fine though he did supervisor her for this part.

That had taken most of the time, but she had gotten it done and moved onto her third one that she would at least start before the end of her detention time. This one was a suspended machine that was used for cutting and welding things well off the ground, so she'd had to leap up and ended up hanging by her legs on a bar that was for some reason affixed to the ceiling, upside down the entire time, to clean it. That was until a bell rang to signal that it was dinner time for any students in after school clubs. It was also the sign that her detention was over.

It had taken a simple flip to get down as Power Loader returned and noted her work. She still had a bit to do with that machine, but she'd resume tomorrow before moving onto the next one on her list to clean, one that she had a feeling she might need some assistance from her Quirk to clean. Even though Marinette had no idea what any of the machines did, her creative mind was fascinated by them and getting all grimy cleaning reminded her of how she got when in the thralls of a fashion product she was especially passionate about.

Perhaps there was some way to meld her passion into her hero work and thus keep doing it in a way that benefited others as well. Power Loader himself was a pro hero with a costume and support license so he'd know but Marinette would have to wait on that for another time, probably when she was done with her detention, to ask him. First, she did have a promise to keep to Hatsume.

"Alright Hatsume, our detention is over for the day, and a promise is a promise." Marinette said as she entered the first room of the studio to find that Hatsume had hardly made a dent in her pile, it seemed like her entire detention time would be sorting it out and event then Marinette had a feeling that the other girl wouldn't come close to sorting out her pile of inventions. "Let's get this over with though, I do want to take a bath and have some dinner before I start my homework and go to bed."

"Huh, oh right your costume." Hatsume said leaping up from the pile she was mumbling over, deciding where the babies should go based of her recollections of the items from when she'd first made them. "Yes, please show me. Where is it though? You said it was on you and Technus explained that his latest costumes are contained in special items that look everyday so they can be hidden and deployed at a moment's notice by the costume's owner, but I don't see anything on you."

"That's because it's in a place I don't often show publicly unless I'm swimming or at the beach and, well, it's in something I don't particularly like people knowing about." Marinette said as she made her way over to one of the work tables before turning so that her back was to the door and Power Loader hopping up to sit on it facing a now bemused looking Hatsume. "This is the best position to show it so come over, I just need my back to the door. You're a girl so I'm comfortable with this but despite my display in the Sports Festival and the visual I no doubt gave Todoroki I'd rather no guy other than Adrien see me like this."

Hatsume just blinked in confusion but did as instructed. The special nanotech costumes that Technus developed were cutting edge and the latest of any tech out there. Only the schools with which he had contracts with in Europe got them as the students there were effectively field testing them prior to a rollout for the established pros. The fact that one of those schools was the French one that the two transfer students had started at was huge. They were the only people in Japan with this type of costume, so Hatsume wasn't going to pass up the chance to look at it in its retracted form.

As soon as Hatsume was in front of her, Marinette reached up and unzipped her top. Under it, as she always did due to the warm weather, she wore just her special ladybug print bra that was snug around her petite chest. Hatsume was female so Marinette had no problems revealing this much, and more if they were to ever go to a communal bath together, to her though the pink haired girl was a bit surprised when Marinette finished unzipping and opened up her top and opened it, Power Loader now very much engrossed at his computer. Once this was done Marinette sat up straight.

"Woah, you are a lot more toned and muscular that I thought." Hatsume said as she looked over the other girl's small chest and clearly defined abs, there was no question that the Hero Course girl was in excellent shape. "There's like no body fat on you at all but it doesn't look unhealthy or anything like that."

"Um thanks, I'm not actually sure why that is." Marinette admitted, she'd always had a lithe, slender, frame and she wasn't the tallest or most endowed of girls, not by a long shot, but since her Miraculous powers had become her Quirk and new constitution her body had been like this and only gotten more developed the more she worked out, which she had to so as to increase her stamina. "Though there is a theory behind my physique."

"Huh, what is it?" Hatsume asked curiously looking at the other girl.

"I'm from the upper class of France and during the early years after the advent of Quirks they had a habit of engaging in Quirk Marriages to ensure that future generations were stronger both in terms of their Quirks and their general bodies." Marinette said using the backstory for it though it was in part true as Mage did actually theorize that she and Adrien needed to have an enhanced constitution to wield their powers as Quirks hence why he'd ensured that they had it. "This was in part because it made the families stronger and in part because of the French habit of bloody rebellions where the rich were usually guillotined so a precaution to protect us as well."

"I am aware of the practice; it was used by families here as well though not as much as Europe." Hatsume said. "Though as I'm not a Hero Course student it doesn't really concern me."

"It's not something I agree with, and it died out long before my generation, but it did have some benefits that are still felt today seeing as my enhanced constitution is a result of it." Marinette explained. "Not exactly a Quirk but still greater than that of a normal human. It also has one added bonus seeing as, at least in theory, it is why I am able to use my Quirk."

"Huh?" Hatsume asked cocking her head in confusion. "What is your Quirk?"

"It's called Lucky Charm and it allows me to create an item that will accomplish the task that I needed it for." Marinette said not actually surprised that Hatsume didn't know what it was as she'd never really shown it to the other girl. "And it never fails so long as I have the time to figure it out and then deploy it. It's a deceptively powerful Quirk and the energy required to use it takes a lot out of me, basically burns all my fat and is why I have to eat a lot to maintain it and have a very strong physic. I likely couldn't use my Quirk, which is also in part a creation of generations of Quirk Marriages, without an enhanced constitution from years of selective breeding in the past."

"Oh, I get it, there are a lot of Quirks like that out there." Hatsume said now understanding what the French girl was saying. "And some that don't work well with the body, that's where we in support come in because we can make items that counter that in ways, for the most part, so that people can use their Quirks without fear of hurting themselves."

"Yeah you get it then." Marinette said glad that she didn't have to go into too much detail for Hatsume on this as she wasn't sure how much more she could give without arousing suspicion. "It is similar with Adrien and a few of my friends back home, a remnant of a bygone era before that of heroes but it does have its uses. Now, have you had enough time to ogle my physic? I would like to get back soon, and I am feeling a little exposed here."

"Huh, oh right sorry I get distracted easily." Hatsume said as she went back to looking down over the other girl in a statement that was very obvious to Marinette. "So where is your costume?"

"Where do you think?" Marinette asked. "The only place an everyday item of jewelry or an accessory can really be on a girl's chest that wouldn't be something she couldn't show in public and something that one wouldn't associate with a girl of my personality or fashion sense when making a baseline assumption about me."

Hatsume looked confused as she looked down the raven-haired girl's small chest and abdomen before she found it. She'd been too distracted by the defined abs to notice it at first but now that she saw it she was amazed she missed it. Right there, in what's her name's navel, was a silver bar piercing with a ball on the top end through the upper part and a larger red flat thing at the bottom with 5 black dots on it covering her navel that matched the girl's bra. Hatsume had to admit, the girl was right, she didn't strike Hatsume as a girl with this kind of piercing.

"Your piercing, that has your costume in it?" Hatsume asked as she bent down to get a closer look at it, zooming in with her Quirk but unable to make it out as anything more than just a piercing which was a testament to the craftsmanship of the support item that contained the girl's costume within it. "Amazing. To think that a costume can be contained in such a small item and be ready to deploy at a moment's notice. The level of skill to make something like this is incredible."

"Yes and don't touch me, please." Marinette said as Hatsume reached for her waist causing Marinette to grab the other girl's wrists. "Just look. I'm not taking it out as I really don't like removing it and there's no way you'd figure it out anyway. Only Technus knows how to create the special nanotech that is inside it, and it is tied to my genetics. I activate it with a fingerprint."

"Fine, I'll get to see one another time I think anyway." Hatsume said with a slight pout as she moved her goggles over her eyes to get a closer look at the item. "Still, I can't believe technology can be stored like that. It has to be tied to Technus's Quirk but still, that is damned impressive that he's been able to create something like this. The whole concept is years ahead of anything else I've heard about."

"Yes, it is." Marinette said. "And all his costumes are like this so that they can be constantly on a hero but never somewhere where any would expect. Adrien's is in his ring, and I know of others in pendants, specialized broaches, bracelets, and even one in a circlet thus giving the student with it a full-face mask with his costume."

"And the costume that comes out, it's skin tight?" Hatsume asked still inspecting the piercing as much as she could and only slightly hearing what the other girl was saying. "Contoured to your body to enhance it's natural abilities and durable as well if I recall the specs I read about when the first ones were announced. Plus, the nanotech is strong enough to be a sort of armor against glancing blows at least."

"Correct." Marinette said impressed by the amount Hatsume knew but if she was to truly work for Technus one day then it made sense that the support girl would know her stuff. "That is why it can be added too with addition support items. Mine turns into a belt buckle of sorts that I have a utility belt for that stores useful items on it like my yo-yo, first aid supplies, and protein cubes. It goes all over and up to my neck. As durable as it is, it can still be broken by a piercing attack or something like a bullet, or at least so I've heard."

"Wait if it's skin tight then you have to be naked to activate it." Hatsume said looking up at the hero girl with a confused look though as her googles were on Marinette didn't really notice that. "Wouldn't that be hard to sort out in a dire situation? I mean I don't care about that kinda thing, but most people do have some sense of propriety."

"Not naked, Technus and another hero in the agency he's part of, the Guardians, worked around that issue." Marinette said moving onto this part of the cover story. "An American hero called Silk."

"Silk, I've heard that name before." Hatsume said her head moving down so that now her gaze was on Marinette's chest. "She's a noted hero and major costume designer right? Top in the Americas if I recall."

"Yes, her Textiles Quirk allows her to be that." Marinette said with a nod. "And as part of the Guardians, she and Technus are within the same organization so they can work together on various things that require a mix of technology and fabrics thus combining their Quirks to create stuff like the underwear that I am wearing. It's designed to mesh with the nanotech when it is activated to become one. I wear it always as well because of that reason and because I'm used to it now. Again, it is genetically coded so as to work with the nanotech, and in Adrien's case has to be seeing as his Quirk can destroy clothes."

"Yeah that's not new, that has been done many times before." Hatsume said dismissively. "There's a third year who's costume is made from a special fiber synthesized from his hair to work with his Quirk or else he'd be naked though for some reason he doesn't wear the special underwear that was made for him, or at least didn't fill out a form for it for the last Sports Festival. There's also a girl in our year who has her costume made from her dead cells for similar reasons and that hero, Mt. whatever her name is, has to have a special costume like that as well. Still, to blend fabric and technology, I'd love to get a peak."

"Then that can be tomorrow's reward." Marinette said as Hatsume began reaching up for her breasts to examine the bra. "I'll bring a spare, clean, one in, and you can look at it after we are done again."

As Marinette was speaking she rolled back into a handstand and pushed up off her hands to flip in the air, zipping her shirt up in the process, and land on the other side of the table from Hatsume to avoid being groped by her again. Without her enhanced constitution and remembering that she was effectively now always in a state of active Miraculous Marinette wouldn't have been able to do that.

"Aww, ok fine, tomorrow." Hatsume said not showing any reaction to Marinette's actions other than annoyance at having to wait. "You'd better bring it though."

"I will." Marinette said as she headed to the door, Power Loader had dismissed her earlier when the bell rang so she could leave whenever though apparently Hatsume was staying. "Aren't you leaving?"

"I still have to sort out my babies." Hatsume said going back to her pile. "Food and bathing can wait."

Marinette didn't know what to say to that, so she decided that it was best to let it lie and hope that it didn't become a recurring problem with Hatsume. She on the other hand needed a bath and a large dinner in that order and quickly left to return to the dorm for it followed by some homework with Adrien and a few others in the class and then bed.

It had been a long day and it was only going to get worse this week once training resumed tomorrow. Marinette would need a good night's sleep for her next detention session as the second semester really began in earnest.


She certainly needed that rest for her second day of detention. The detention itself wasn't that bad, more cleaning of machinery, sometimes in odd or contorted positions and once having to use her Quirk to create something to reach the part of the machine she was cleaning as she couldn't do so naturally. No, the issue for Marinette was that she was doing it after a brutal training session.

Mr. Aizawa hadn't been wrong, the training they were now receiving was like before only kicked up a notch or 5. They were still perfecting ultimate moves and if they already had one then trying to find a second move. The problem for Marinette was that her ultimate move was draining, and she honestly didn't know if she could create a second one given the nature of her Quirk and how her mind worked. She'd spent most of the session trying to manage that but to no avail. She'd try again tomorrow but if not then she'd have to go back to making her known one flawless and versatile for multiple situations.

That was easier said than done given how complex her mech was and that her time limit was at best 10 minutes if she pushed herself past her limits to keep it active. Problem was that if she did that then she was basically out of it for a good 12 hours while she recharged no matter how much she ate. In that time, she probably couldn't use Lucky Charm or if she did she'd not be able to keep the item active for as long while adding to the recovery time when she dismissed her item.

Marinette wasn't blind, she knew how Lucky Charm was viewed by the staff and the rest of her class. While it may not be an organic Quirk as many believed it to be, it was still a Quirk now and coded into her DNA and all that came with having Quirk genes. What came with it was, well, the fact that it was an extremely powerful Quirk. On the surface it might not initially come off as such but once people faced Marinette they learned that it was damned hard to counter if she had the time to use it. As such, the whole class was aware of how strong it was.

What they still didn't realize though, at least not fully, was the cost Lucky Charm required from her. Marinette hadn't really been wrong the day before when she explained how her enhanced constitution was likely the reason why she could use her Quirk, it was physically draining and the stronger or more complex her items were or if she changed items during her activation period then the more it took out of her and thus the longer she needed to recover. The same was true for Cataclysm though that was more dependent on how much of it was active on his body.

Still, Marinette was a hero student and had once been an actual hero long ago so she could do this. She'd do all she could to mitigate the costs of Lucky Charm so that she could be the hero that she wanted to be, the hero she used to be only even stronger. That meant that she was going to have to really start some heavy endurance and stamina training to help with her Quirk in general and her ultimate move in particular.

That, alas, would have to wait however as she still had her detentions and had promised Hatsume the chance to inspect one of her bras after the day's detention was over. She'd kept to it making sure that she had a clean spare on her that day and after training brought it to the Development Studio but asked Power Loader to hold onto it while the girls served their second day of detention. Now that was over she could get on with showing it to Hatsume.

"Alright, as promised here is the item I'd bring for you to look at Hatsume." Marinette said to the girl, still only partially into her pile of 'babies' that she was sorting out and which Marinette was certain had been added too in one day alone. "Please be quick as I am exhausted so would like to bathe and eat before I do homework tonight."

"Oh right, people are supposed to do those things, but I don't have the time for trivial things like that." Hatsume said leaping up and hurrying over to the other girl, Dupain or Cheng, she was certain the girl's name was one of those, to see this item. "Well, show me it!"

"Here." Marinette said pulling out the band of red fabric with black dots on it that she brought. "This is a clean bra of mine that I have to wear with my costume but these days wear with everything. Trust me when I say that I have matching bottoms with it though I wouldn't call them panties, more girl boxer briefs I guess."

"Huh it's not particularly big." Hatsume said ignoring what else Marinette was saying as she took the fabric in her hands and looked at it, stretching it out fully only for it to not be very elastic and noticeably small though still large enough to avoid showing any cleavage. "Not much give, good for a skin tight style though which is how that nanotech works so that's likely why."

"Well, I'm not exactly well endowed as you are well aware of by now." Marinette pointed out though unlike some she actually didn't mind having a small chest though it wasn't flat like Kyoka's so that might play a role in that sense. "It doesn't need to be big for me. It's actually why I can wear it normally as it's not constricting or suffocating normally. If I was a larger cup size then I don't know if I could wear it all the time."

"Oh yeah bras are a nightmare." Hatsume said idly as she laid Marinette's out and flipped down her goggles to get a closer look at it and really zoom into the material. "If it wasn't for the stability they give, and the fact that my breasts do get in the way if they are unrestrained and I can't have that, I wouldn't wear one."

"Somehow that doesn't surprise me." Marinette muttered though she was glad Hatsume did, the girl wasn't exactly small in that department and had to be at least equal to Ochaco in it if not bigger making her second only to Momo in their year as a whole that Marinette knew of so no wonder the brunette had been jealous when she saw them being pressed up against the boy she was in love with. "Anyway, what can you tell about it with your trained eye? I'm really into fashion myself but even I can't really understand them though my skills do lie in the fabric and not the tech aspect. They're damned near indestructible though, and I just get shipped them when I need it, same with the bottoms."

"So, they're a matching set." Hatsume said as she poured over the fascinating fabric clearly only now realizing that despite what Marinette had said only a moment earlier. "Not surprised seeing as it would have to be that way. As for this bra, it really is an incredible piece of work. I've seen many costumes in my time that are specially made for their wearers with support gear or out of thinks like hair and skin cells, but this is different entirely. It's unique from my experience meaning that it's manufacture has to be a closely guarded secret."

"It is?" Marinette asked.

"Oh yes it is." Hatsume said never once looking away from the item. "It's as if raw textile materials and technology have been woven together seamlessly to create some that is both and neither at the same time. It's beyond anything I've ever seen. The fabric part alone is something unique, likely from a Quirk if it is from someone like Silk and seems to be custom designed to be interwoven with technology, almost certainly Technus's nanotech that itself is created using his Technomancy Quirk. I can tell all this from the shimmer and rigidity but that is all I can deduce. The actual programing though, that is well beyond me."

"From what I gathered; it is designed to be incorporated into my costume and seems to do so though how I do not know." Marinette said though she did know but there was no way she was going to try and explain magic to Hatsume. "The costume is pure nanotech from what I know. The underwear was developed for modesty so that we could change quickly and in dire cases in public."

"I see, this really is amazing." Hatsume said. "Shame I can't take it apart to find out how it is made though I honestly don't know if we have anything that could do so. If I had to guess this thing is fireproof and normal blades won't cut it and all that is in the fabric aspect not the tech aspect."

"It is legally protected through multiple patents, so you'd be looking at a few massive lawsuits if you tried." Marinette said. "Though as part of the deal with Adrien's family they will get the information so that they can help make a variant of this that will also work. The Agreste family is the best in Europe with fashion but the actual fabric in these items is exclusive to Silk and she's not creating it for them, so they are working on their own variant of it with her assistance. She wants this deal as much as they do so she can resume more full-time hero work."

"Yeah, yeah, I get it." Hatsume said dismissively, she was well aware of the legal restrictions on her passion. "I'll learn all this in time because I am determined to earn that job. Just seeing this and that piercing of yours has really motivated me for my next test."

"Which is?" Marinette asked.

"No clue." Hatsume said with a smile at her as Marinette used that moment to take back her bra so that she could leave. "I'll get sent instructions before the time with what is required of me."

"I see." Marinette said as she began to head to the door once again not surprised, it seemed the truly gifted support geniuses tended to be extremely eccentric at the same time. "Well, I take it you're staying a bit longer."

"Yup my babies need me." Hatsume said leaping towards the pile. "Come to mama babies, let's get back to work."

Marinette just sighed but smiled at Hatsume's passion and drive as she left the Development Studio after her second detention to return to her dorm. It was draining but this was all good training for the real world and Marinette would take any training she got as the week of hell for her continued.


The third day of detention really wasn't anything to talk about. Again, Marinette was exhausted going into it from her hero training, which had ended up with her deciding to focus on her one move that could be changed during its activation to fit her situational needs rather than create a second one, so she was now doing that. That also meant that she was focusing on improving stamina and endurance which was always fun. Still, she got through it and then reported to the Development Studio.

Again, she was cleaning and helping out. This time though she took more note of the things cleaned and focused on what she was doing. Her talks with Hatsume and simply being here had really peaked her creative interests so she was now really curious about how she could go about getting some licenses that would allow for her passions to continue in a way that would aid the hero world. She'd still have to wait as her punishment came first.

The third day's work went by quickly and while she made a little small talk with Hatsume at the end, she didn't have anything to distract the other girl with, so she had to leave the support girl seeing as Hatsume was still deep in her now clearly unchanging in size pile and focused solely on that. That was fine for Marinette as she needed the rest and headed back ready for another standard evening in the dorms before another standard day.

At least, that had been the plan but now that Midoriya was done with his house arrest, the 4th day of the semester was not standard. This was the day that Mr. Aizawa had decided to introduce them to the Big 3 of U.A., the top 3 3rd year students so the very best the Hero Course had to offer. That had in turn devolved into them all fighting the top student at the school, Mirio Togata, when he challenge them to all fight him at once.

All that would have been fine had he not also been a highly intelligent student who showed his experience and training when struck at the biggest threat to him at the very start of the battle, Marinette. Marinette's item, a skintight electrified suit, would have stopped Togata but he reached her before it could be completed and distracted her to break her concentration on it, something she knew she would now have to work on. He then proceeded to defeat her utterly in seconds. Admittedly, with her Quirk and skills he did have to go as far as he did but still, it was not pleasant.

Marinette hadn't faced such a beating since Todoroki in the semifinals though that had been worse overall. She respected her upperclassman, even if looking at him was still an adjustment given how much he looked like the fictional character Tintin from those old, lost, graphic novels she'd read as a kid, so she understood why he was being thorough with her. When facing a threat that had the potential to best you, something that had inadvertently raised Marinette's standing in the class again, you shouldn't stop until that threat is fully neutralized which in Marinette's case meant being rendered unconscious.

She knew that this was true in the real world, Adrien's battle with Stain where he failed this concept was proof enough of this, but to be on the receiving end was still a lot. She'd had two ribs broken from the first punch which had subsequently punctured her left lung, a bruised sternum from a knee to it that her chest was not large enough to absorb, a concussion and cut forehead from when Togata ended her by piledriving her head first into the concrete. That had been what had knocked her out so that he could face the rest of the class with ease.

Well, mostly with ease. From what Marinette was told by Adrien in the nurse's office after she recovered from her second bout of healing that finished the job for the most part, Adrien had been left standing as he'd been the only one to avoid Togata's punch. He'd then used his Quirk from his feet to force a stalemate and Mr. Aizawa to end the session before checking on her dazed self that had begun to babble in French about being beaten by Tintin. Thankfully Recovery Girl had arrived by then and was quick to give her a first healing before Marinette passed out again.

She came too a few hours later in the nurse's office shortly after a second healing to find Adrien working on homework next to her. Recovery Girl explained everything to her and that she was healed up but would have the bandages for another day or two and need a final session in the morning before classes which Marinette accepted. She'd also asked about her detention situation as she'd clearly missed it.

That had been sorted out already, however. Power Loader had anticipated this, and she would make it up on the weekend with two hours on Sunday morning. Marinette could do that and was glad to be discharged with Adrien after the training to return to the dorm. As such, her 4th day of detention was actually on Friday, and she was going to be ready for that.

"What happened to you?" Hatsume said as Marinette walked into the Development Studio on Friday afternoon after her latest intense bout of hero training with her head still bandaged.

"Hero training." Marinette answered simply. "The Big 3 came to the class and, well, I got beat bad because I was the biggest threat to Togata, so he targeted me first and put me in the nurses office. You are right, he needs to use that damned underwear."

"Huh, must have been tough to injury you." Hatsume said before turning back to her pile that seemed to have only grown this week rather than shrunk as was intended, seriously how did she produce so much so fast.

"Hatsume's right, how much force was he using?" Power Loader asked as Marinette reported to him for her assignments for the afternoon.

"Enough to break some of my ribs." Marinette said with a wince, she was still a little tender there but nothing a good weekend wouldn't fully heal and next week, when they found out more about work studies and their eligibility for then, she'd be back at full strength for what was to come. "His punches are hard, so is concrete."

"Must be but he is the top student, so I guess that makes sense." Power Loader said. "Alright, well given your injuries, today is just sweeping and other more mundane cleaning that is just as important as cleaning machines."

"Thank you." Marinette said glad that she wouldn't have to over exert herself here for once as she went to a store closest and began getting what she needed to get to work.

True to Power Loader's word, the rest of Marinette's 4th day of detention was just that, sweeping the floors, mopping them as well, and cleaning surfaces. Nothing too taxing or overly exerting for her to do but she still did her job to the fullest and made sure everything was as clean as she could make it.

When the time was done Power Loader complimented her on her work and expected her back on Sunday for 2 hours in the morning to finish her last slot. Marinette agreed and left to return to the dorms for a needed bath and dinner once again. The week had been draining but she only had one more session left and then she could focus on her school and hero stuff full time and the drain that brought with it. Still, that would be the perfect time to talk with Mr. Power Loader about what she wanted to ask him.


"Mr. Power Loader, sir, may I ask a question?" Marinette asked as she leapt down from where she'd been on the wall cleaning some wall mounted machine as her final 2-hour slot of detention ended when the teacher came in to tell her that it was over and that she should leave as soon as possible as students who did extra work on the weekends, like Hatsume, would be in soon. "Now that I'm all done with my detentions that is."

"Of course, come back to the main room though as the other students need to use this area." Power Loader said and Marinette nodded as she followed him, barely out of the room when Hatsume rushed into it already talking to the machines. "It will be easier there."

"Thanks Dupain, this will speed so much up." Hatsume said with a grin using at least part of Marinette's name, the first part this time, which given that the only hero course students the girl seemed to know where Adrien and Midoriya was still a positive though she'd not grasped the hyphenated nature of Marinette's surname. "Did you miss me guys? Let's make so cute babies together. Mama's going to work you extra hard now that we're both clean so let's get filthy together."

Marinette just smiled and shook her head at the strange girl as she followed Power Loader to his desk. Over the past week she'd begun to build somewhat of a report with Hatsume and she'd say that their friendship was starting but there was still a long way to go before they were truly friends. Not because of anything bad, it was just Hatsume's nature meant that she was easily distracted so it would take time and work to become friends but one day Marinette was certain that they'd manage it as Hatsume would likely be her primary support gear contact.

Until then though, Marinette would keep working on it. Right now, she had a few questions to ask the Support Course teacher before she left to get some lunch and then do an intense workout that afternoon with Adrien to help build up more stamina.

"Sir, I was wondering, how would a Hero Course student or if that is not possible a hero after I graduate, go about getting at least a costume making license if not that and a support gear making license." Marinette asked as they reached Power Loader's desk surprising the teacher with the question. "It's just you have both of those and a pro hero license so it can be done hence why I am asking you."

"It can be done for sure but out of curiosity why are you asking?" Power Loader asked. "Your records don't indicate any interest in those fields."

"Ah well in France we specialize so early that I couldn't really do either, though the gear stuff is more after seeing the Development Studio here and being intrigued by it, but I have always had a deep passion for fashion." Marinette said. "I have a full scrapbook, several actually, of fashion designs and make my own clothes most of the time. I'm actually very good at it, I even won a contest run by the Agreste family a few years back, so that is why I am asking. While I will be using Technus costumes going forward, his contract with the Agreste family and my own connections to it mean that I kinda have to, but I was hoping to one day be able to add to it myself and was wondering how I'd go about ensuring that."

"I see, well for that you'd have to apply for, and get the licenses from, Technus and his company directly." Power Loader said. "Given the nature of your costume that is a must and how you'd get that I do not know. Usually there are a few tests to prove you can create a usable costume for a hero and some background stuff but as a Hero Course student that isn't an issue for you. That you can do in your own time and while at school if you already have cloth making experience, a support license is different though and you are right in that you'd need both to add the gear to your or anyone else's costume."

"I thought as much." Marinette said. "There's a license needed to make the gear and one to make costumes so that the gear can be added to them. The latter being a full costume license I take it."

"In a way yes." Power Loader said with a nod. "To make either costumes or support items you need a license that you get through a company that is allowed to make such for heroes or through a school you attending, though all the U.A. Support Course students have the support license before coming as it is a requirement to get it. However, if you only have the support license then you can only make the items, you need the costume one to add it to a costume which is what I have. Small changes are easy and can be done in house, but large ones need to be sent off to the actual companies to sort out the paperwork and ensure they meet governmental standards which is usually a 3 day turn around."

"That makes sense." Marinette said understanding it well and aware of at least the exposed skin requirement due to Momo's costume being right at the edge of it.

"That is the standard way here at least." Power Loader said. "But as you know, Technus is especially restrictive with his costumes and only those with a special license or approval from him, like Hatsume, can add gear to them though the approval process is just as fast."

"That I know, and I have a contact that can help me with that due to Francois Dupont's connections with Technus." Marinette said. "I was just wondering about the process."

"For costumes it sounds like you probably have the skills already, just find out what Technus requires and apply that way." Power Loader said. "For support gear, you're going to need special training to first learn how to use the machinery and then how to make the items. If you can design clothes then you have the right mindset for it, but it won't be easy as the skills required to work technology are different to those required to work fabrics."

"I can also make things and have created a few devices in my time though nothing like the support gear that is made here." Marinette admitted. "But I understand, I assume it would require showing skills and competence in making usable support gear."

"Pretty much." Power Loader admitted. "And with the hero course you won't have the time for that part. You can come here and learn in your free time, few will probably teach you, but observation is helpful, though until you get a license I can't let you work here. Getting one will require approval from a support company and with your costume it will have to be Technus's company itself and that will take time given how you are starting from scratch. My advice, if you do wish to make items as well as costumes then learn what you can in your limited free time and sort it out after you graduate when you have no normal classes distracting you. That's what I did."

"I see, I can do that." Marinette said already thinking on how to sort it all out. "Thank you sir."

"Of course, now get back to your studies and behave when you are here next time." Power Loader said sternly. "You've got talent Dupain-Cheng, from what I've heard you will be a great hero so don't let your emotions get the better of you like they did before."

"I won't." Marinette said firmly before she turned and left as Power Loader went back to his work.

Her 5 days of detention had been useful in a lot of ways. It had opened Marinette's eyes to a way she could incorporate her passion into her hero work, and she intended to do that when she had the time, both the application for a costume license which given her skills and connections with Mage that shouldn't be too hard and preparing to one day get a support gear license.

First though she did have to focus on the coming semester and the potential of doing a work study under Mage. Hopefully she got to do one and who knew how that would go. All Marinette did know was that this was going to be one hell of a semester.

Well, that ended up being a lot longer than I had initially expected it to be but there was a fair bit to cover in this special chapter and Hatsume is a fun character to work with, so she got a good amount of time to shine. As with everything in this story, there is more to this chapter than meets the eye and a few things will come up again in time that were teased or mentioned here. The only thing to really add is that if anyone is interested in seeing the character of Silk, she's actually the first Guardian mentioned so far that isn't an original Guardian or the stuff with the two Guardians of Ghosts that has debuted in a different piece of mine as she appeared in chapter 26 of 'Miraculous: Revelations of Ladybug and Cat Noir' my one shot reveal collection that kinda got nullified by the events in Season 3 though there is one difference between Silk there and in this story and that is her Guardian number as it is 28 in this story not 30 as it is in the other one for various reason. Anyway, that is all I have for now, so I'll leave this chapter off here. As always, if you like it or have any questions please let me know in reviews or PMs, I will try to answer them as best I could and post any questions asked between uploads at the start of the next chapter and do follow and favorite this, so you are alerted to future uploads. Do keep the reviews coming as I like hearing from y'all as you enjoy my work, it motivates me to keep producing the best work I can for y'all to enjoy. Until next time.

Stringdog