Forced Feminization Crossdressing Story: Until Yuuta Becomes Yuuka
Yuuta used to know exactly who Akira was—his best friend, his teammate, the guy who choked on every sprint but never missed a shot. That certainty started cracking the day Akira walked into class wearing a skirt, and it hasn't stopped since. Now the whole school whispers about how "cute" Akira has become, boys are lining up for a confession, and Yuuta can't stop staring—can't even explain to himself why it bothers him so much.
Then he finds a torn newspaper clipping buried in the library stacks
Forced Feminization Crossdressing Story: Until Yuuta Becomes Yuuka - The Siren's Whisper — The Pattern in the Music Room, the Truth of Magic
Siren Academy at night was a completely different creature from the daytime school.
Yuuta stopped in front of the main gate. It was already past nine. The gate was shut, and the lights in the front entrance were off. Beyond the wall, the school building loomed like a solid black mass.
(Why did I even come here?)
Something had been churning deep in his chest all day. Last night, an empty message from Mikoto had arrived on his phone. Ever since he'd seen it, his head had been a mess.
And then, in the evening, a message from Akira.
"Tonight at nine, the school music room. You'd better come. If you don't, I'll tell everyone about what happened yesterday."
It was a threat.
But Yuuta had come anyway.
(I could've run away.)
No—that wasn't it. He couldn't run. The urge to find out what Akira was really planning was stronger than his fear.
Yuuta pushed up the frame of his glasses and slipped through a gap in the wall around to the back of the school building. The emergency stairway behind the gym stretched upward, melting into the night darkness. The door that was supposed to be locked during the day was slightly ajar tonight.
"...So that's how it is. They want me to come in this way."
He muttered under his breath and pushed the door. A rusty creak echoed across the quiet schoolyard.
Inside, the hallway was dead silent. Only the green glow of the emergency lights floated here and there. His footsteps sounded terribly loud.
With every step, the cold linoleum pressed against the soles of his feet. It was a summer night, yet the inside of the school building was chilly.
(The music room is on the third floor of the special wing.)
Yuuta traced the daytime map of the school in his head. Cross the covered walkway to the special wing, then up the stairs. Outside the windows, the moon had emerged from a gap in the clouds. Pale blue light spilled in long, thin strips across the hallway.
His heart was pounding.
(What is Akira trying to show me?)
(Is Mikoto-san here too?)
(What was that empty message about?)
He climbed the stairs one step at a time. His footsteps echoed off the walls, sounding doubled, then tripled. As if someone other than himself were following behind.
He turned around. No one was there.
He knew that. But he couldn't help looking back.
He reached the third floor. The music room was at the end of the hallway.
He stood before the door.
A faint light leaked from inside. Not moonlight—something softer, orange. Someone might have lit candles.
Yuuta took a single deep breath.
He filled his lungs with the cold air. Then slowly let it out.
He reached out and touched the doorknob. The cold of the metal raced up his arm from his fingertips.
(It's fine.)
(I'm just going to talk.)
He told himself that and opened the door.
A creak of hinges split the silence of the night.
—Inside was brighter than he'd expected.
A small table sat in the center of the music room. Three candles flickered on top of it. The orange flames wavered, illuminating the instrument cases lined against the wall and the staff lines on the blackboard.
And in that light—
There were two figures.
One was seated in a chair. Long, blue-black straight hair. Narrow, sharp eyes. The same calm smile as always.
It was Mikoto.
"Welcome, Yuuta-kun. I've been waiting."
Mikoto turned her face toward him. The candle flames flickered in her eyes.
The other stood beside Mikoto.
Brown hair swayed softly around her shoulders. The nape of her neck, visible above the sailor uniform's collar, caught the candlelight and glowed white.
It was Akira.
"...You actually came, Yuuta."
Akira smiled with what looked like relief. That expression was far softer and more alluring than anything she showed at school during the day.
Yuuta stood frozen in the doorway.
(They're both here after all.)
(What is this?)
(Why is Mikoto-san...)
His head was spinning with confusion.
"W-why... why are you here, Mikoto-san..."
His voice cracked.
Mikoto giggled.
"Because I'm the one who called you, of course. I told Akira to bring you here."
"Eh..."
"You got that message, didn't you? The one from me."
Mikoto toyed with a charm on her bag. It jingled softly.
A cold chill ran down Yuuta's spine.
(So that empty message really was from Mikoto-san.)
(But how did she get my contact info...)
"How did you get my contact info?"
"Akira told me. You're registered in her phone, aren't you?"
"...Akira."
Yuuta looked at Akira.
Akira glanced away, just slightly.
"Sorry, Yuuta. But if I hadn't done it this way, you wouldn't have come, right?"
"...That doesn't mean you had to threaten me."
"Come on, there's no way you'd have come willingly after what happened yesterday."
Akira's voice grew a little sweeter. A voice that blended the tone of the boy she used to be with the girlish tone she had now.
Yuuta pushed up his glasses. His fingertips were damp with sweat.
"...So what do you want? Calling me out to the school music room in the middle of the night."
"Hey, Yuuta-kun. Why don't you sit down first?"
Mikoto tapped the chair across from her with a light thump.
"Or would you rather hear it standing? That's fine too, but it's going to be a long story."
There was a note in her voice that allowed no argument.
Yuuta reluctantly lowered himself into a chair near the door.
The farthest spot from the door. He angled half his body toward the exit, ready to bolt at any moment.
Mikoto saw this and laughed again.
"You're on your guard. But it's pointless."
"...What's that supposed to mean?"
Mikoto didn't answer. Instead, she slowly stood up.
"Akira. Why don't you show him?"
Akira's shoulders jerked.
"...Now?"
"Now. Yuuta-kun has been wondering about you all this time, hasn't he? Then you should show him properly."
Mikoto gave Akira a meaningful look.
Akira seemed to hesitate for just a moment. But then she nodded.
"...Yuuta."
Akira stood directly in front of Yuuta.
The candlelight illuminated her profile. The shadow of her long lashes fell across her cheek.
"I'm going to show you my body now. Everything you've wanted to know."
Akira's hand reached for the collar of her sailor uniform.
Her white fingertips undid a single button.
A small click.
"...Hey, what are you doing?"
"Look."
Akira opened her collar slightly.
—In that instant, Yuuta's breath stopped.
From Akira's neck down to her chest, a pale blue light was rising to the surface.
Faint, thin lines intertwined, forming a pattern. Curves like the swell of waves. And it was pulsing slowly on Akira's skin, in time with her breathing.
"W-what the hell... is this?"
His voice trembled.
"This is the proof that I became a woman."
Akira said quietly.
"It's a pattern that appears on the skin of anyone whose body has been changed by the Siren's magic."
"The Siren's... magic..."
Yuuta had heard those words somewhere before.
—An old school newspaper clipping he'd found in the library.
"The Siren's Magic."
That article had mentioned a rumor that a student who crossdressed would become a woman down to their very body.
(I thought that was just some occult nonsense.)
(But now, right in front of me...)
"The Siren's magic. It's a magic that turns the person you crossdress into a woman."
Mikoto spoke quietly.
"I can use that magic. They call me the Siren's successor."
"The Siren's... successor."
"Akira has been becoming a woman with my help for the past few months. Little by little. By now, she's hardly any different from a real girl, wouldn't you say?"
Mikoto placed her hand on Akira's shoulder.
Akira closed her eyes and tilted her head slightly, as if entrusting herself to that hand.
"...It's just as Mikoto-sama says."
Akira's manner of speech shifted smoothly from a boy's to a girl's.
"Mikoto-sama made me into a girl. I was scared at first, but now I'm so happy."
"Akira... what are you saying..."
Yuuta's mind went blank.
(Akira became a woman by choice?)
(With magic?)
(Starting months ago?)
That couldn't be. Akira had been a boy. He loved basketball, got flustered talking to girls, and was a manly guy.
But the Akira in front of him now barely retained any trace of that person.
"Yuuta-kun."
Mikoto took a step closer to Yuuta.
"You're next."
"...Huh?"
"I'm saying it's your turn to become a girl next."
Mikoto's voice was cold, freezing the air in the room.
"You've gotta be kidding me!!"
Yuuta shouted and shot up from his chair.
"Why do I have to become a woman?! There's no way that's possible!"
"It is possible. Akira did it, after all."
"Akira... Akira just ended up that way for some reason! I'm different! I'm a man! I will never become a woman!"
Yuuta ran for the door.
He grabbed the doorknob.
—In that instant.
Snap.
A sharp sound echoed through the room.
It was the sound of Mikoto snapping her fingers.
The door slammed shut on its own.
Click.
The sound of a lock engaging.
"W-what the..."
Yuuta twisted the doorknob with all his strength. Metal scraped and rattled. But the door didn't budge.
"Open it! Why won't it open?!"
He pounded on the door with both hands. Thud, thud—the dull sound echoed through the night music room.
"It's useless. I locked it."
Mikoto's voice came from behind him.
"You can't escape. I've sealed the doors and windows of this room with my magic."
Yuuta looked toward the windows.
Third-floor windows. Moonlight was streaming in. But even those windows seemed blocked by some transparent force—not a breath of outside air came through.
"...Why are you doing this?"
Yuuta slid down with his back against the door.
His legs wouldn't hold him.
"I told you, didn't I? I'm going to make you into a girl."
Mikoto approached slowly.
"Everyone resists at first. Akira was the same. But you know what? Soon enough, it starts to feel good."
"Stop... don't come near me..."
Yuuta said in a shaking voice.
But Mikoto didn't stop.
"It's all right, Yuuta-kun. I'll do everything for you."
Mikoto crouched down in front of Yuuta.
Her narrow eyes peered into his from close range.
"You're good material. Just like Akira, you can become incredibly beautiful."
Mikoto's finger gently touched Yuuta's cheek.
A cool fingertip.
"Please stop..."
"I won't stop. Because this is for your own good."
Mikoto stood up.
"Akira. You teach him."
Akira slowly moved behind Yuuta.
"Yuuta."
Akira's voice was at his ear.
A sweet, sweet voice.
"Don't be scared. I was terrified at first too. Scared of not being a boy anymore—there were nights I cried."
Akira's breath brushed against Yuuta's neck.
"But you know what? Now I'm happy. Every day, I think about how good it feels to be a girl."
Akira's hand took Yuuta's hand.
"W-what are you doing... Akira..."
"I'm going to teach you. How wonderful a girl's body is."
Akira guided Yuuta's hand to her own chest.
"Stop... please stop..."
Yuuta tried to resist.
But his body wouldn't move.
Fear, confusion, and something else entirely had bound Yuuta's body in place.
Akira pressed Yuuta's hand against her chest.
—It was soft.
A gentle, yielding sensation against his fingertips.
Even through the sailor uniform, he could tell how soft it was.
And warm.
Human body heat seeped slowly into Yuuta's palm.
"See... you can tell, right?"
Akira whispered.
"I've become a real girl, haven't I? This chest isn't a boy's chest. It's a proper girl's chest."
"...A-Akira..."
Yuuta's throat convulsed.
He wanted to pull his hand away.
He had to pull it away.
But he couldn't.
The softness of Akira's chest traveled from his fingertips up his arm, numbing his brain.
(This is Akira's body.)
(The same Akira I used to play basketball with.)
(So why does it feel so...)
"Hey, Yuuta. Why don't you come over to this side too?"
Akira's voice melted sweetly into the depths of Yuuta's ears.
"Being a girl is fun. It feels good. Won't you become beautiful with me?"
"...I..."
Yuuta's lips trembled.
"...I'm a man...
Novelia is an AI-powered platform to read original light novels and fan fiction, create your own in just a few taps, and chat with the characters. New, illustrated episodes arrive daily — free to start.