The Day the Sunset Fell Upside Down ~Everyone's Gender-Swapped~
Sendou Yuuhi is a high school VTuber with long brown hair, yellow highlights, and sunset-gradient eyes. She's a member of the virtual talent group 'Vuisupo!' and spends her days streaming with her friends. She thinks she's laid-back and gentle, but everyone tells her she's actually loud and energetic. One day, after a stream, Yuuhi finds an old mirror in the break room with a note reading 'Gender Reversal.' Thinking it's a joke, she shouts at the mirror, 'I'm tired of being a girl all the time—I
The Day the Sunset Fell Upside Down ~Everyone's Gender-Swapped~ - A Smile in the Mirror
"Yuuhi, you're too loud!"
Friday night. In the green room of the Shibuya streaming studio "Mirror Ball," the members of Vuispo! had gathered. It was a studio exclusively for Vuispo!, located a ten-minute walk from Shibuya Station. Five soundproof rooms, and the latest streaming equipment lined up in rows. Today, streaming was over, and everyone was lounging around.
"Eh? You think so?"
Long brown hair with yellow mesh highlights. Eyes with a gradient like a sunset—purple on top, orange on the bottom. Sendou Yuuhi tilted her head, still in her Neo-Shibuya Academy uniform. Navy blazer with a red ribbon, plaid skirt. Height: 158 centimeters. Slender but healthy build.
"Don't 'you think so' me. The mic was about to blow out."
Platinum blonde short hair, with one side braided and pinned with a silver hairclip. Eyes the navy blue of a night sky, sparkling like twinkling stars. Hoshimiya Neon was the club president of the streaming club, and Yuuhi's best friend. Height: 162 centimeters. Despite her cool appearance, she was a caring person.
"Ehehe. It was just so fun, I couldn't help it."
When Yuuhi laughed, her eyes curved into crescent moons.
"'Couldn't help it,' my foot. Your 'couldn't help it' happens every single time."
Neon sighed. But the corners of her mouth were slightly relaxed.
"Yuuhi-senpai, you're so energetic today too."
Soft milk-tea brown fluffy short hair. Round, large amber eyes. Kagurazaka Ruri was the group's healing presence. Height: 165 centimeters. Gentle and soft-spoken, always polite to everyone.
"Ruri, your stream today was really good. Your bedhead was cute."
"Uuu, that was so embarrassing... My hair was sticking up in the morning."
Ruri pressed both hands to her head. Apparently, she really does get bedhead easily.
"That's part of your charm. The viewers were commenting 'cute' too."
"R-really? Ehehe."
Ruri laughed bashfully.
"Hey, you lot. Do your stream recaps at the office."
Black hair slicked back in a cool style. Sharp, jade-green eyes. Kirishima Satsuki was staff dispatched from the Vuispo! management bureau. Height: 175 centimeters. Always calm, never showing emotion. But in truth, he supported the juniors from the shadows.
"Satsuki-san, you should join us for a chat sometime too."
"I have work."
"But your work's already done, isn't it? You finished checking the equipment a while ago."
"...You're observant."
"I'm the club president, after all."
Neon gave a little hmph.
"Oh right, Satsuki-san. Would you come on stream sometime? Like a management staff feature."
"No."
"Instant answer! Why not?"
"I don't show my face. That's my policy."
"Voice only is fine! Like a segment where me, Neon, and Ruri interview you."
"Denied."
"Stingy!"
Yuuhi puffed out her cheeks.
"I'm not stingy. I'm behind the scenes."
"But if you appeared on stream, you'd definitely be popular. You're handsome."
Yuuhi said with a grin.
"...You really just say things like that without thinking, huh."
Satsuki looked away slightly.
"Eh? I was complimenting you."
"Yeah, yeah. Yuuhi, that oblivious side of yours is sometimes a deadly weapon, so watch out."
"Oblivious? I'm just marching to my own beat."
"That 'own beat' is what we call oblivious."
"Muu."
Yuuhi puffed out her cheeks again.
"Yuuhi-senpai, you're cute."
"Ruri, you're really soft on Yuuhi."
"But she's just so cute."
Ruri smiled happily.
"...Well, I won't deny it."
"Neon, what was that just now?"
"Nothing. It was nothing."
Neon turned away with a huff.
"Neon-senpai, your ears are red."
"They are not red!"
"Ahaha, Neon's cute."
"Shut up!"
Laughter echoed through the green room.
—This was the everyday life of Vuispo!
High school girls attending Neo-Shibuya Academy gather after school to stream. The school has a streaming club, with about thirty members. This studio in Shibuya is a dedicated space rented by the management bureau.
Vuispo! is a group whose purpose is to enjoyably stream the everyday lives of girls. Yuuhi and the others play games, chat, sing songs. They keep up these streams almost every day.
"By the way, tomorrow's Saturday, but are we going to school?"
"There's a streaming club meeting. Did you forget?"
"Ah, right. What time again?"
"Ten o'clock. Don't be late."
"I'll be fine. I haven't been late recently."
"You were fifteen minutes late last week."
"That was because the train was delayed."
"The train wasn't delayed. You overslept."
"Ehehe."
"Don't try to laugh it off."
"Yuuhi-senpai, I'll give you a morning call tomorrow."
"Ruri, you're so kind! Thank you."
"Ruri, if you spoil her, she'll oversleep again."
"You think so? But Yuuhi-senpai is bad with mornings."
"That's not the issue."
Satsuki let out a small sigh.
"Satsuki-san, you're welcome to give me a morning call too, you know?"
"I won't."
"Instant answer! Satsuki-san, you're so cold!"
"I'm not your guardian."
"You can be my guardian. You're so reliable, Satsuki-san."
"...You really are, with things like that."
"Eh? I was complimenting you."
"We had this exact same exchange a minute ago."
"Ahaha."
Yuuhi laughed.
—At this moment, everyone was laughing.
She thought this everyday life would continue forever.
"Huh? Hey, isn't there a mirror over there?"
Yuuhi pointed to the corner of the green room.
"A mirror? If you mean a full-length mirror, it's over there."
"No, not that. The one with a cloth over it."
Yuuhi stood up and approached the large object in the corner.
It was an old full-length mirror with a wooden frame, about 180 centimeters tall. A white cloth was draped over it, covered in dust.
"Was this always here?"
"Beats me. I never noticed."
"I've never seen it either."
"Satsuki-san, do you know?"
"No. I don't know either."
Satsuki furrowed his brow.
"There's something written on it. Gender Reversal...?"
When Yuuhi removed the cloth, there was a paper stuck to the mirror surface.
"What does 'gender reversal' mean?"
"It means swapping sexes, I think."
"What's that? A prank?"
"Must be. Someone stuck it there."
"But this mirror is really old. The wooden frame is all scratched up, and the surface is cloudy."
Yuuhi touched the mirror. It was cold and chilly.
"Leave it alone. It's creepy."
"Ehh, but I'm curious. Let me wipe it a bit."
Yuuhi lightly wiped the mirror surface with her uniform sleeve.
Her own face reflected in the mirror.
Brown hair with yellow mesh. Sunset-like eyes.
"Yep. It's a normal mirror."
"See, I told you. It's a prank."
"Maybe. But who stuck this paper here?"
Yuuhi tried to peel off the paper.
But it wouldn't budge.
"Huh? It won't come off."
"Maybe it's glued on?"
"Hmm, maybe."
Yuuhi gave up on peeling the paper.
"Hey, do you think this is a charm?"
"A charm?"
"Yeah. Like, if you make a wish to the mirror, it comes true."
"That's an urban legend. Don't."
"But isn't it kind of interesting?"
Yuuhi stood in front of the mirror.
"Yuuhi-senpai, what are you doing?"
"A charm. I'm going to try it."
"Don't."
"It's fine. I'm just joking."
Yuuhi took a deep breath facing the mirror.
And then—
"I'm bored of nothing but girls~! I wanna try being a boy for once~!"
Yuuhi's loud voice echoed through the green room.
In that instant.
With a snap, all the lights in the room went out.
"Eh?"
Total darkness.
"Hey, what the!?"
"A blackout!?"
"Calm down. The emergency lights will come on."
Only Satsuki's voice was calm.
A few seconds later, the emergency lights flickered on dimly.
A faint orange glow illuminated the green room.
"W-what...?"
Yuuhi was standing in front of the mirror.
Her own figure reflected in the mirror.
Brown hair with yellow mesh. Sunset-like eyes.
—The reflection in the mirror slowly smiled.
A wicked grin.
"Hiih...!"
Yuuhi collapsed to the floor.
"Yuuhi!?"
"J-just now, my reflection in the mirror... smiled!"
"What are you talking about!?"
"I'm serious! My face, it grinned!"
Yuuhi shouted in a trembling voice.
"Calm down. Look at the mirror."
Satsuki pointed at the mirror.
In the mirror, there was just the normal, frightened face of Yuuhi reflected.
"Eh...?"
"Nothing's changed. You imagined it."
"But it definitely smiled!"
"It was dark, so you misread it."
"Was it... really?"
Yuuhi's heart was still pounding.
Just then, the lights snapped back on.
"Ah, the lights are back."
"That blackout was long, wasn't it."
"About ten seconds, I'd say."
"Yuuhi, can you stand?"
Satsuki extended a hand.
"Y-yeah. Thanks."
Yuuhi got up with Satsuki's help.
"Man, that was a shock. My heart's still pounding."
"That's because you shouted weird things."
"But I meant it as a charm."
"Charms don't cause blackouts, normally."
"I mean, that's true, but."
Yuuhi looked at the mirror once more.
The mirror stood there quietly, as if nothing had happened.
"...That's kind of scary."
"Really? It's just an old mirror."
"Yeah. I know, but."
Yuuhi looked again at the paper stuck to the mirror.
"Gender Reversal."
—Sex reversal.
"...No way, right?"
Yuuhi muttered quietly.
"Yuuhi, let's go home. We have school tomorrow."
"Ah, yeah. Wait up."
Yuuhi tore her eyes away from the mirror and started gathering her things.
—At this moment, no one noticed.
That the Yuuhi in the mirror had smiled one more time.
◆
After getting home, Yuuhi collapsed onto her bed.
"Ahh, I'm exhausted."
When she opened her phone, there were messages from the members.
'That blackout today was so surprising~'
'Yuuhi's scream was hilarious'
'Your reflection in the mirror smiled? Yuuhi, weren't you just tired?'
Everyone was taking it lightly.
"Was I tired, I wonder."
Yuuhi stared at the ceiling.
"But that smile, it was definitely my face."
Yuuhi remembered her face in the mirror.
That wicked grin.
"...It was my imagination. Yeah. It was definitely my imagination."
Yuuhi told herself.
She was the type who didn't overthink things.
"Well, I'll probably forget by tomorrow."
Yuuhi placed her phone by her pillow and closed her eyes.
"Good night."
With that, Yuuhi fell asleep.
◆
The next morning.
Beep beep beep, her phone alarm rang.
"Nn... so noisy."
With her eyes still closed, Yuuhi fumbled for her phone.
She stopped the alarm.
"...Five more minutes."
Yuuhi pulled the covers back over herself.
—That's when.
"Hm?"
Yuuhi felt something off about her own voice.
"...Was that my voice just now?"
She tried speaking again.
"Aah."
Low.
Much lower than her usual voice.
"Eh? A cold? But my throat doesn't hurt."
Yuuhi sat up.
And then she looked at her body—and froze.
"...What is this."
Her chest was gone.
More precisely, the swelling that should have been there was gone.
"Eh? Eh? Eh?"
Yuuhi touched her chest.
Flat.
"Why!? Where did my chest go!?"
Yuuhi scrambled out of bed.
She stood in front of the mirror.
What was reflected there—
"W-who...?"
Brown hair with yellow mesh. Sunset-like eyes.
But the facial features were different.
The jawline was slightly sharper.
The shoulders were broader.
There was a faint hint of an Adam's apple on her neck.
"Eh, is this me...?"
Her voice was low.
Her body was clearly male.
"You've gotta be kidding me...?"
Yuuhi crumpled to the floor in front of the mirror.
—Just then, her phone rang.
An incoming call.
Looking at the screen, it was from Neon.
With trembling hands, Yuuhi pressed the answer button.
"Hello...?"
'Yuuhi!? This is bad!'
Neon's voice burst out of the phone.
But that voice was lower than usual.
"Neon...? What happened to your voice?"
'What about yours, isn't it lower!?'
"I-it might be..."
'Mine is too! And that's not all! My body... my body's turned into a guy's!'
"Eeeeeh!?"
Yuuhi screamed.
'Hey, you're too loud! My ears are ringing!'
"S-sorry. But Neon, you've turned into a guy too!?"
'Yes! No chest! Broad shoulders! Low voice! The worst!'
"Me too! Same here!"
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