The air behind the curtain tasted of hot dust and ozone—the particular bite of stage lights warming up, filaments buzzing to life behind colored gels. Beneath that, the sharper note of fresh gaffer tape and the faint sweetness of cosmetic powder that clung to everything within three meters of the dressing area. Cables ran across the concrete floor like black veins, each one triple-checked, each one Kazama Haru's responsibility.
"Alright then, I'll be counting on you for the official performance."
He bowed again—deep, from the waist—to the lighting technician, then to the sound engineer, then to the stage manager whose clipboard hadn't left her hands in four hours. His dark hair fell across his forehead with each dip, and a thin sheen of sweat already gathered at his temples despite the performance not having started. The venue hummed with the low, restless murmur of a packed house beyond the curtain, hundreds of voices blending into a single living drone.
The members of Ave Mujica watched him from their circle near the stage entrance, exchanging glances that carried the weight of shared understanding. A knowing curve touched each of their lips.
He's been running himself ragged since dawn, Togawa Sakiko thought, her golden eyes—bright as polished amber under the dim backstage wash—tracking every movement of his shoulders, the way his collar sat slightly askew from constant motion. She forced herself to look away, turning to face her bandmates.
"As I said before—since Haru-kun is covering every detail for us backstage, we absolutely cannot let his efforts go to waste." Her voice carried the quiet authority of a conductor lifting her baton. Silvery-lavender hair spilled past her shoulder blades, catching what little light filtered through the wing curtains, and her slender fingers adjusted the ornate gothic mask perched above her brow. "So... let's enjoy this stage. Every second of it."
"Wearing these masks really does feel like we're plotting something naughty, doesn't it~?" Yuutenji Nyamu twisted at the waist, her coral-pink curls bouncing against her jawline. Her petite frame practically vibrated inside her dark lace-trimmed dress, drumsticks already spinning between her fingers in a restless figure-eight. She pressed the porcelain half-mask tighter against her cheekbone, grinning beneath its edge. "My heart's going doki doki so hard I can barely stand still!"
This is it—our real debut. Not a rehearsal, not a stream. The real thing. She could feel her pulse in her wrists, right where they'd meet the drumheads.
"Well, it is the most important debut we'll ever have," Yahata Umiri exhaled slowly, her emerald eyes half-closing as she listened to the swell of crowd noise seeping through the curtain seams. Taller than the others by nearly a head, she stood with her weight shifted to one hip, bass slung low across her torso, its neck resting against her collarbone. Her ash-brown hair was swept into a loose side-braid that exposed the sharp line of her jaw. Even after cycling through multiple bands, the pre-show nerves still found the soft space between her ribs. "Let's give them absolutely everything."
I've stood on stages before. But never one that felt like it could swallow me whole.
"Once we step out there, we trust each other completely. Backs to one another, ne, Saki-chan?" Misumi Uika's voice landed like warm cloth over cold skin. The former idol stood with both hands clasped gently before her, her chestnut waves framing a face built for gentleness—round cheeks, wide hazel eyes, a mouth that defaulted to something between a smile and a lullaby. Her words carried the practiced calm of someone who had learned, across dozens of idol stages, how to transform anxiety into presence.
The crowd went quiet when I sang at rehearsal. Not idol-quiet. Something deeper. I want to feel that again.
"Mm." Wakaba Mutsumi nodded, and it was enough. A single, unhurried syllable. Her long indigo-black hair hung like a curtain of still water past her waist, and her violet eyes—pale, almost translucent in certain light—remained half-lidded, as though she were already somewhere between waking and dreaming. Her fingers rested on her guitar's neck, motionless, patient. A faint curve graced her lips, barely perceptible, like the ghost of a smile remembered rather than performed.
He'll be watching. On the monitor. That's enough.
The five of them pressed their palms to their own hearts, feeling the individual rhythms there, and then stacked their hands together—warm skin against cool rings and lace gloves—into a single trembling tower.
"Then—let's enjoy it together."
"Ave Mujica."
---
"10... 9... 8..."
The cold electronic countdown threaded through their in-ear monitors like a needle pulling silk. Sterile. Precise. Merciless.
They stood at center stage behind the curtain, five figures arranged in the formation they'd drilled until muscle memory replaced thought. The sequins on their gothic dresses caught stray photons from the wing lights and scattered them in nervous constellations—tiny, restless stars pinned to fabric that smelled of new thread and the faint chemical sweetness of stage dye.
Kazama Haru met their eyes one final time from the wings. Sakiko's amber. Nyamu's bright hazel. Umiri's steady emerald. Uika's gentle brown. Mutsumi's distant violet.
He smiled.
He raised one hand, curled it slowly into a fist, and pressed it against his own chest—right over his heart. Then his lips moved without sound:
"Go."
I've done everything I can. Every cable, every cue sheet, every contingency. The rest belongs to them.
He had prepared every variable within his power. Now it was time to place his trust—entirely, without reservation—in these five.
The curtain rose.
Sound hit them like a physical wall. A roar—raw, enormous, animal—erupted from the darkness beyond the stage lip. Hundreds of glow sticks swayed like bioluminescent kelp in a deep-sea current, and the combined heat of the crowd rolled forward in a wave that carried the scent of excitement itself: sweat and perfume and the metallic tang of adrenaline.
A massive flood of white light surged through the proscenium arch, outlining each girl's silhouette with searing clarity—every fold of lace, every strand of hair, every trembling fingertip rendered in brilliant relief.
For a single, breathless instant, they looked as though they might dissolve into that radiance entirely.
And Kazama Haru stepped back.
One small, deliberate step deeper into the wings, where the light couldn't follow. He let the shadows close around him—the comfortable darkness of cable bundles, equipment racks, and silence. This was where he belonged. The architecture that held the stage aloft without ever being seen.
They were the hikari—the light the world would adore.
He was the kage—the shadow that nourished it.
"Good luck," he whispered, and even the word was swallowed by the roar before it left his lips.
---
On stage, a single spotlight descended like a moonbeam.
Misumi Uika stood alone in its column, both hands clasped behind her back, chin slightly raised. She parted her lips and began to sing—"Greensleeves," the old English folk melody, rendered in a soprano so clear and achingly pure it cut through the residual crowd noise like a silver blade through silk.
The audience fell silent. Not gradually—instantly. As though every throat had been gently seized shut by invisible fingers.
This silence, Uika thought behind her mask, is nothing like an idol concert. This is reverence.
"You sing beautifully." Togawa Sakiko's voice emerged from the darkness stage-left, rich and theatrical, dripping with the honeyed cadence of a puppet master who already knew the ending. "Are you also here for the masquerade ball?"
She appeared hand-in-hand with Wakaba Mutsumi—two puppet sisters, their movements synchronized with eerie precision, stepping in tandem as though pulled by the same set of strings. Sakiko's golden eyes gleamed behind her mask, alive with something between hunger and affection. Mutsumi drifted beside her, spectral, her indigo hair swaying with each measured step.
Guided by the sisters, Uika—a puppet herself, still innocent of that truth—wandered deeper into the masquerade.
Above them, projected onto the domed ceiling, a silver crescent moon hung in digital splendor. The puppets gathered beneath it.
Then Yuutenji Nyamu stepped forward, and the air on stage shifted.
"Embracing you to sleep just yesterday... yet embracing others today." Her voice dropped low, intimate, a murmur meant for one ear alone. She circled behind Uika and reached up with deliberate slowness, her fingertips making contact with the curve of Uika's cheek—tracing from the high bone down to the corner of her jaw with the tenderness of a lover memorizing a face by touch. The pad of her thumb grazed dangerously close to Uika's lower lip. "Humans are truly cruel, aren't they~?"
Uika's breath caught—an involuntary flutter visible in her throat, the tiny hitch transmitted through her chest mic to every speaker in the venue.
"Nee..." Nyamu leaned closer, her lips nearly brushing the shell of Uika's ear, pink curls mingling with chestnut waves. The warmth of her breath ghosted across Uika's neck. "Do you want me to hold you tightly?"
A collective shudder rippled through the audience.
That's right, Nyamu thought, her grin widening behind her mask. Feel it. Every single one of you.
"This place is where discarded puppets are collected."
"Discarded... puppets?" Uika's voice cracked—beautifully, precisely, the fracture of a porcelain thing learning it was porcelain all along.
One by one, listening to the puppets introduce their broken histories, Misumi Uika's composure unraveled. Her voice thickened with tears she refused to shed, until at last, trembling, she accepted what she was.
"Welcome to the Attic Night!"
Sakiko's voice rang out across the hall like a bell struck in an empty cathedral.
"Now—to welcome this masquerade ball, I bestow upon each of you a temporary name."
The puppets stepped forward in sequence, moonlight-given life burning briefly in their borrowed veins.
"Mortis."
"I fear no death." Wakaba Mutsumi's voice was a still pond. She advanced one step, guitar held like a scepter, her violet eyes flat and unreadable.
"Timoris."
"I fear no fear." Yahata Umiri looked down at the bass cradled in her arms, her emerald gaze softening, as though addressing an old companion.
"Amoris."
"I fear no love." Nyamu dropped into her throne behind the drum kit with theatrical grace, arms crossing over her chest, drumsticks fanned between her fingers like a queen's decree.
"Oblivionis."
"I fear no oblivion." Sakiko bent at the waist in a curtsy so precise it belonged in a Baroque court—spine straight, one ankle tucked behind the other, fingertips lifting the hem of her skirt just enough to reveal the dark lace beneath.
"DOLORIS!"
The name tore from Sakiko's throat—sudden, sharp, a command wrapped in anguish.
Misumi Uika, guitar clutched to her body, raised her head. Slowly. The tears were gone. What remained in her eyes was something harder, something forged.
"I fear no sorrow."
The audience erupted.
---
After the applause crashed and receded like a wave, the music began.
Oblivionis's keyboard swept in first—a minor-key waltz, whimsical and sinister, the kind of melody that might play in a music box found in an attic no one remembers locking. Sakiko's slender fingers skipped across the keys with the practiced ease of someone who dreamed in sharps and flats, her narrow waist swaying with each phrase as though the music moved through her body before it reached the speakers.
Haru-kun helped write this. Every note carries a piece of him.
Amoris answered with percussion—Nyamu's ambidextrous style transforming the kit into a conversation between thunder and a heartbeat. Her sticks whirled in ornate, showy arcs between strikes, tsk-tsk-DOOM, tsk-tsk-DOOM, each hit landing with the confidence of someone who had never once doubted her own rhythm.
Timoris's bassline slid in beneath, low and warm as blood, her fingers pressing into the fretboard with calm authority. Together with the drums, they formed the rhythmic foundation—bedrock beneath a cathedral of sound.
Mortis played with mechanical precision, her legato passages erupting in long, molten runs that climbed and climbed before crashing back—vrrrrrnnnn—sustain ringing against the venue walls like the echo inside a bell.
And then Doloris plucked three slow, deliberate notes. Let them hang. Let the silence between them ache.
"Welcome to the world of Ave Mujica."
The chandeliers—rigged low above the stage with amber and violet gels—swelled to full luminance. Dark, psychedelic, ornate metal erupted from every amp stack, and the venue ignited. Bodies surged toward the stage. The floor shook.
---
Backstage, Kazama Haru was anything but idle.
Through the roar of distorted guitars and the thwack-thwack of Nyamu's kick drum rattling the monitor speakers, his ears caught it—a faint electrical hum, sixty-hertz, threading beneath Sakiko's keyboard channel like a mosquito in a cathedral.
He keyed his intercom without hesitation, voice level and precise despite the chaos. "Sound booth, this is wings. I'm hearing AC hum on keyboard channel two—check the DI box connection on stage-right, cable may have worked loose. Have a backup XLR standing by."
If she hears that hum in her monitor during the bridge, it'll pull her out of the zone. Not happening.
The fix came within forty seconds. The hum vanished. Sakiko never knew it had existed.
His eyes returned to the backstage monitor, and stayed there.
On screen, Togawa Sakiko had become something otherworldly. Her fingers didn't merely press keys—they commanded them, each strike deliberate, each release timed to the millisecond. Her slender hips swayed in unconscious figure-eights, the heavy fabric of her dress whispering against her thighs with each movement. The mask had slipped slightly, revealing the flushed curve of her cheek, and her lips were parted in something that wasn't quite a smile but held more joy than any smile he'd ever seen on her face.
She had, truly and completely, forgotten. Every burden. Every expectation. Every wound.
That expression, Haru thought, his chest tightening. That's the one I've been working for.
The audience, too, had surrendered. Thousands of individual bodies breathing as one organism, swaying in synchronized devotion, faces slack with the particular narcotic bliss of total musical immersion.
Just as the lyrics he and Sakiko had written together promised—captives of pleasure, willing and complete.
---
[Backstage Dressing Room — 9:18 PM]
"That was awesome! We're already trending!"
Nyamu bounced on the dressing room couch, phone held aloft like a trophy, her coral curls wild and damp with post-show sweat. The screen's blue-white glow painted her flushed cheeks as she scrolled furiously through social media feeds. The room smelled of cooling bodies, hairspray losing its hold, and the particular staleness of a space that had held too much adrenaline for too long.
"Not just that," Kazama Haru said, crossing the room with two bottles of Pocari Sweat in hand. He offered one to Nyamu, his own phone balanced in his other palm, data dashboards still open. "The pre-performance interview video has topped the trending charts too. Views are climbing faster than the projections I ran this morning."
We hit every metric. Exceeded most. And they did it on raw talent alone—no gimmicks, no manufactured drama, no riding anyone's coattails.
He'd been monitoring the analytics with the obsessive focus of a day-trader watching volatile stocks—refreshing, cross-referencing, calculating momentum curves even as the final chord still rang in the venue.
These girls were geniuses.
No borrowed fame. No leveraged beauty. Pure, undeniable musical force.
No wonder they were on track for the fastest Budokan record in history.
---
"Good work."
Haru crossed to the far corner of the dressing room, where Wakaba Mutsumi sat alone on a low bench, her guitar still resting across her lap. Her chin had been dipping toward her chest—the drowsiness that perpetually clung to her settling back in now that the adrenaline had ebbed. Her indigo hair pooled around her like dark water, and her lashes—long, feathered, the blue-black of crow wings—rested against her pale cheeks.
He knelt beside her, bringing himself to her eye level, and held out a chilled bottle of water. The plastic was already beaded with condensation.
"You were incredible out there, Mutsumi. Honestly." His voice dropped lower, more personal than the managerial tone he used with sponsors and stagehands. "Your guitar work—everyone backstage couldn't stop talking about it. The legato runs in the second verse were flawless, and that sustain you held through the bridge..." He shook his head, a genuine, slightly awed exhale escaping him. "It gave me chills."
She deserves to hear this. Not as a platitude. As truth.
"Is... that so?"
Mutsumi raised her head slowly, blinking the drowsiness from her violet eyes. They focused on him—on him, not past him, not through him—with a directness that felt almost physical, like the soft press of fingertips against a closed eyelid.
She hesitated. Her lips parted, closed, parted again.
"And you, Haru-kun... do you... like my guitar playing?"
"Un! Absolutely—I do." The answer came without a breath of hesitation. No performative pause, no diplomatic hedging. Just conviction.
It wasn't flattery. He'd listened to her performance through studio-grade monitors with an engineer's ear, and what he'd heard was playing that flowed like water finding its own path downhill—organic, intuitive, devoid of any stiffness. Technically masterful and emotionally transparent in equal measure. It suited his taste perfectly.
"...Thank you."
The word left her barely above a whisper. Her eyelashes—those dark, feathered things—trembled, a flutter so slight it might have been imagined. Her arms tightened around her guitar, pressing it closer against her chest, her knuckles whitening around the neck.
He said he likes it. My playing. Not onee-san's legacy. Not the "gifted imouto" everyone else sees. He heardme.
Her guitar playing had received his praise. And unlike everyone else who orbited her life—the industry people, the fans, the journalists—when Haru spoke to her, his attention didn't slide toward her famous older sister's shadow, didn't reduce her to someone's talented little imouto. He saw what belonged to her alone.
"Haru-kun."
Her voice was quiet. Certain.
"This is for you. You... worked hard too."
She watched him—this boy whose forehead glistened with sweat earned from hours of relentless, invisible labor, whose eyes still darted instinctively toward the other members even now, checking, caring, cataloguing needs he hadn't been asked to meet.
Mutsumi reached into the pocket of her stage dress, her slender fingers emerging with a handkerchief—white cotton, neatly folded, carrying the faint scent of lavender sachets and something softer beneath, something that was simply her. She raised her arm, and the fabric of her sleeve slid back to reveal the pale, narrow line of her wrist.
The handkerchief touched his forehead.
Her hand was steady. The pressure was gentle—barely there.