My name is Miki. I'm a genuine guy!

...Well, maybe I was a guy...

My parents work at a research institute, studying chromosomes. Lately they've been working on a drug that lets you choose a baby's sex after conception, and they'd been keeping the almost-finished experimental drug in our fridge.

"Hey, hey... Why the heck is that stuff in our fridge!"

And I ended up drinking that drug by mistake in the middle of the night. Dad, what the hell are you going to do about this? My whole life...

Well, Miki had dashed into the toilet and was about to pee when...

"Gyaaaa—It's gone—!"

"Miki! Hey, what's wrong?!" Hearing my huge scream, Dad instinctively banged on the toilet door and shouted.

Creeeak.

After a brief pause, the toilet door slowly opened, and Miki's tear-streaked face appeared.

"Look... look at this..."

Shifting her gaze to where I was pointing, Mom let out an impressed voice, as if it was none of her business. "My. Splendid."

"It really is. Completely gone," Dad said, honestly stating his observation as a researcher.

"Hold on! What am I supposed to do?! How am I supposed to pee?!" I yelled at them, my anger plain, reacting to their clinical, researcher-like attitude. Because right now, I'm about to burst!

"Miki. Come over here a moment." Completely ignoring my feelings, Dad seemed to be looking at me through the eyes of a researcher, pure and simple. Helpless, I did as I was told, was laid down on the bed in their bedroom, and had every corner of my body examined.

"Tomoko, take a look. This is a 100% success."

"Yes, dear. This is worthy of the Nobel Prize, isn't it?♪"

"Hey, what exactly happened to my body?" Growing a little irritated at their delight, I checked the most important thing.

"Ah, Miki. Your body is already 100% that of a girl. You don't need to worry—you can pee just like a normal girl, so rest easy."

"What!? No way... Hey, I... I can go back to being a guy right away, right?" Finding that explanation beside the point, I asked what I really wanted to know.

"In the rat experiments..." Dad's face didn't look the least bit apologetic as he said that; if anything, it looked like it was sparkling. Seeing that, I felt incredibly anxious, but I asked the short question.

"In the experiments?"

Gulp. So tense and anxious, I swallowed my saliva with all my might.

"One hundred percent of the rats given this drug a second time died."

"Ehh!? That means... I'm a girl for the rest of my life..."

This is the worst... At that, my consciousness just... faded away.

* * *

"Mmm... mmm..."

Chirp, chirp, chirp... The sound of little birds chirping in the distance. Morning already, huh. Right, weren't the final exams starting today? I slowly sat up in bed, but...

Jiggle.

Ah!

"Wait, that wasn't a dream? A-and what the—even my voice has changed!"

This is my voice? It sounds just like a girl's. Timidly, I looked at my reflection in the mirror.

"Who... is this?" What I saw there wasn't the me I knew—it was a completely different girl.

"Mom! Mom!!" I clattered down the stairs to the living room.

"Miki. You're awake. Thank goodness; I was so worried because you'd been sleeping for two whole days."

"Mom, this..." Still in men's pajamas, I pointed at my now-bulging chest and stared pleadingly at Mom's face.

"I'm sorry, Miki."

"Like that helps! Even if you say sorry, I can't go back to normal, right?!"

"That's right. Right now... your father is handling all sorts of procedures. Despite appearances, he's got friends in high places in various circles. You don't have to worry; you'll be able to live properly as a girl."

"Come on... Even if my body's turned female, my heart's still a guy's."

"Oh, right, right. I bought something nice for you, Miki-chan."

"Something nice?"

"Yes. This! Look."

Saying that, Mom showed me women's clothing. And a huge amount, too. When on earth did she get all this?

"You know, I actually wanted a daughter as well. Because I get to dress her up in cute clothes, right?" Mom looked happy as she showed me a particularly cute outfit.

"Wh—I'm absolutely not wearing that stuff!"

"But you can't go to school in a boy's uniform, can you?"

"There's no way I'm wearing a skirt or anything!"

"Oh, I think it'll suit you. Your body's completely a girl's now, after all. And your voice, too."

"Mom, put yourself in my shoes! I'm telling you I'm a guy!"

"Miki-chan. Come over here for a moment." Mom sat me down in front of the dresser, combed my hair, and tied it with a wisteria-colored ribbon.

"See? You've become a proper girl." My hair's always been on the longer side, but the me in the mirror was a pretty cute girl. That cuteness only made it more of a shock.

"Due to the effects of that drug, your body and facial features have changed to be more girlish. You're a perfect girl from every angle now." I had no energy left to say anything; I just stared blankly at the mirror.

"Ah, this is a dream. Please let me wake up soon! There's no reason for something like this to actually happen!"

"Ah, yes. Also, we're in the middle of procedures so you can transfer to Fujimigaoka Junior High. You'll probably be able to start in the third term."

"Fujimigaoka... that private school?"

"Yes. Their uniforms are terribly cute, you know~"

"..."

"Oh, what's wrong?"

"Mom. That school's girls' uniform is super mini-skirt!"

Right. Among us boys, the Fujimigaoka girls' uniform is really popular. To be honest, even I had secretly decided that if I ever got a girlfriend, she'd be from Fujimigaoka. But now I have to wear that uniform myself... Oh, woe is me.