Note: We have edited this chapter! Thank you Fetusfluid69 for all your hard work!

It started out as a normal day. All of class 1A was talking about the field trip. We had scheduled a trip to the Quirk Research Lab on the outskirts of Tokyo. The ride from school to the Lab was uneventful, Mineta was being creepy and drooling over Yaoyorozu from the seat behind her, while Kacchan had been yelling about something or another to no one in particular, I had been slowly learning how to block him out. A lady in a white lab coat was waiting as we entered the lobby to begin our tour, she waved the group over and introduced herself.

"Ahh you must be the famous class 1A, I'm Okada Miho, chief of operations here at the Quirk Research Laboratory of Tokyo." Dr. Miho said.

I couldn't get enough of all the people here to have their quirks be analyzed. Groups of people crowded the main hall; the large room buzzed with noise and conversations. It was pretty incredible, Iida had to nudge me more than once to get me to stop muttering, scribbling notes, and prevent me from bumping into people.

"Pay attention!" Iida scolded as we walked deeper into the lab following Dr. Okada.

Ochako laughed at me as she walked ahead. "Deku pay attention you don't want to get lost." Ochako giggled and pulled my arm along to the next area. It was a long hallway with rooms off to the side. Large windows next to each door gave you a full view of each person testing their quirk. The opposite side of the hallway had windows lining it as you looked down into a large room full of water tanks. I pulled out my notebook to write all the amazing things I was seeing in the test rooms.

The group kept walking down the hall ahead of me. I walked faster to catch up, scribbling into my notebook. I caught up, but I bumped into Kacchan, he spun around letting off his regular spouting off something like "Shitty nerd!" or "Stupid Deku!" I wasn't able to make it out as he gave me a shove. I hit the glass window over the pool room. The glass shattered around me as I fell. I was able to grab a hanging chain on my way down feeling my shoulder jerk almost dislocating it from the force. I could hear my name being called from above and people yelling for help. The chain was wet. Just my luck. My hands kept slipping until I reached the end. I reached up to re-grab the chain to pull myself back up, but I slipped. The air rushed around me, a second later I was underwater the wind knocked out of me from the impact, water-filled my lung as my body tried to fill my lungs with air again. I felt something grab me and pull me up water dripping off my clothes and hair. My clothes were looser and my skin felt tingly. I registered my back being slapped as I coughed up the water I had swallowed. I could hear my classmates above calling out asking if I was ok. I wrapped myself in a towel and got lead away by the staff. I was vaguely aware of the people handing me dry clothes and leading me to a room with towels to dry off and change.

Still coughing and hacking but much less so, I started taking off my clothes to dry off better and change. My body felt strange, to say the least. Drying off my hair. I looked around the room to find a mirror. I wanted to make sure I didn't have any cuts from the glass. Luckily there was one over in the corner of the room. I blinked. I couldn't be seeing what I was seeing. It was me, of that I was sure but the body my body was wrong. My hair was longer but still, my trade make a mess in it, my waist had more of a curve to it and my chest had breast? No. that couldn't be right. I must have hit my head. I grabbed at my chest, the large firm lumps on my chest were really there it wasn't the mirror. Oh god, I pull off my pants the green tuft of hair is still there but my dick wasn't. I could feel panic filling my chest. There must have been a quirk affecting the water. Fuck, fuck. I finished drying off and put the provided clothes on. There was a knock at the door as it slowly opened. It was Aizawa, he looked at me and sighed.

"Come on problem child, the company's president Ishii Kazuki is here to talk to you about.. . well..." He coughed and gave a small nod.

"Oh right yeah I'm done here," I said

He nodded as I grabbed my bagged wet clothes, tears gathering in my eyes. I went out of the now open door to the long hallway. It was a silent walk as Aizawa led the way down the hall to the meeting room. A group of people in lab coats and suits sat around a table off to the side was medical supplies and other tools for quirk analysis. I swallowed the suddenly larger lump that formed in my throat. The room became extremely quiet as I walked in. I immediately bowed.

"I'm so sorry for causing so much trouble, please tell me what I can do to fix this." I could feel the tears start to flow freely down my cheeks.

"Now, now there is no need for that it could have happened to anyone. Please tell me are you ok are you hurt do you need any medical assistanceMidoriya? ' he said.

"I'm fine but.. .ummm .... I wasn't a girl before the fall." I said looking at the floor

The room filled with murmurs and a few cuss words from the lawyers and scientists. I was lead to a chair on the side as they immediately started asking me questions and examining me.

"We are all so sorry that this happened the quirk in the water should not have been active and been safe for use. We have never seen its effects last this long and the fact you ingested a decent amount is concerning as we have no idea how that will affect you in the long-term." Ishii Kazuki said.

My head was swimming as they ran tests and drew blood. At some point, my mom showed up hugging me tight and squeaking in shock once she felt my now plump chest on her own.

My face had never been so red as she began fussing even more over me, yelling at my teacher and the workers demanding answers. They were answered the best as possible after a few more hours of check-ups and tests, lots of paperwork on my moms and Aizawa's part, I was given the ok the head back to the dorms. My mom fussing over me the whole trip back. The school was informed of my new predicament and my room was apparently moved to a different location on an empty floor so I would have space and privacy while things settled.

"Oh honey are you sure your ok?" my mom said teary eyes looking at me.

"I'm sure mom."

"Ok well you will have new uniforms and we will meet this weekend to go get you anything else you think you will need maybe ask your female classmates to let you borrow stuff and help out...." She trailed off as I hugged her outside the school gates.

"I will make sure he... she has everything he needs, as will the rest of the school staff." Aizawa assured her. Sighing heavily as he pinched the bridge of his nose.

"And all the girls in my class will help out too I'm sure I will meet you at the mall on Saturday I promise mom." I said; With one last tearful goodbye to my mom, I watched her drive home as I turned to walk to my dorm room. Aizawa lead me to my new space without running into anyone and bid me goodnight.

I collapsed on my bed letting everything sink in before pulling out my phone and turning it on, glad I got the waterproof case for my phone. I had so many messages from all my friends asking if I was ok and asking what was going on. I put my phone up before crawling into bed it would be easier to tell everyone everything all at once tomorrow morning. Right now I was too exhausted and just needed to sleep.

I woke up to my alarm blaring, my whole body aching and sore. The events of the day before washing over me as I took in my new room. They had set it up like my room on the boys' side but it still felt different. I took out my uniform, but the shirt didn't fit it swam around my new form. This was a problem. How was I to go to class like this? I looked up as I heard a knock at the door. I walked over to the door opening it only be pulled into a tight hug by Ochako. I saw Yaoyorozu, Tsu , and Jirou walk in after her, they had bags and a female uniform on a hanger.

"Oh Deku, I'm so sorry we are here to help you in any way we can!" Ochaco said.

Yaoyorozu stepped over after placing her bags on my bed, pulling me into a hug. "Yes exactly we have all be briefed on what happened and we are ready to help with whatever needs or questions you may have."

I smiled looking at them, tears already forming in my eyes. Before I could even say my thanks, Jirou was pulling me over and wrapping my rib lower cage with a measuring tape, then moved it up to my chest gently measuring there as well.

"Looks like little Izuku has a size 36 D." Jirou said.

My face flushed bright red as they started talking among themselves, Yaoyorozu was ready using her quirk creating even more things to go with whatever they had brought upon arrival.

"Okay, now Deku listen up, I have made you several types of bras, from sport to casual and even one for lounging." She said holding them up to show me which ones where which: handing me cute looking dark green one.

"This is the one you will wear for today, and now we have underwear for you as well your boxers just won't fit your new frame. I stuck with a boy-short style to help you adjust to the different feel women underwear have." Yaoyorozu explained.

My face warmed up more as they handed me the new underwear as well. Ochako and Tsu started pulling other things out of the bags and putting them into piles on my bed.

"Ok now change into those." Said Yaoyorozu looked at me expectantly.

"R -r- right now?" I stammered.

"Yes now, we need to teach you how to put on a bra properly. We don't know how long you'll be in this new form so its import you learn to do it right," Yaoyorozu stated sternly.

She made a good point. My tomato red face was on as I started to take off my shirt. Jirou took it from my hand while Ochako then started instructing me on how to properly put on the sports bra. It wasn't actually that hard to put it on and I could feel a major difference in how my breast was held now it was much more comfortable. They all nicely turned away as I put my new underwear on they were tight but in a comfy way . They then showed me how to put on my new uniform. The girls had just started giving me tips on how to move around in a skirt when there was a knock at the door and Ashido came in with a pair of tights and shoes. "Sorry, that took so long had a hard time finding the sizes you guys texted me. You sure are extra tiny now aren't you Deku!" Ashido laughed.

We all laughed. A few minutes later we were out of the front of the dorms heading to class, everyone else had already left. I could feel my heart beating harder as we got closer to our classroom. My mind raced. How would others react? Would they laugh at me? I must have started mumbling in my panic as I felt Ochako's hand on my shoulder. She smiled at me. "It will be ok we are all here for you! Girls stick together!"

"And tonight we will get to talk more and let you vent to us!" Tsu chimed in smiling wide.

I smiled back taking a deep breath as I stepped into the classroom. The noise that I had heard seconds ago coming from the room suddenly died down with a loud collective gasp. The room then erupted into chaos as questions from the male half of the class clashed with the girls pushing them back. Hagakure helped lead me to my seat, all the girls creating a shield around me from the mob of men in our class. Mineta kept yelling something about checking to see if this was real or just a costume or prank. I could hear Kaminari and Kirishima yelling about how cute I was and how they couldn't believe I made such a good girl. Iida was yelling at everyone to get back in their seats as class was to start soon and all their questions would be answered by Aizawa when he got here. Most of the class sat down finally letting the girls relax and start to settle into their own seats. I took a deep breath just glad that it was over. I leaned over to get my notebooks out of my bag when all of a sudden I felt a hand grab my breast. Hard. I let out a scream activating all for one and giving out a hard punch into the offending hand's chest. They flew up and with a crash hit the ceiling, Plaster fell from the ceiling and screams from the class above could be heard. I pulled my arms over my chest looking up as Mineta fell back through the new hole in the ceiling with a loud thud. He had a perverted smile on his face, blood dripping out his nose. This was gonna be a long day