Late at night.
The guest room in Mafuyu Kirisu's apartment.
Heavy curtains shut out the city's last traces of light.
The room lay in near darkness, the only sound the soft hum of the air conditioner.
Fumino Furuhashi and Rizu Ogata—now in their early twenties—were lying side by side under the same thin quilt on the room's one large bed.
In the dark, neither could sleep.
Their breathing was uneven, and their minds kept looping—like a glitched slideshow—through the day's scenes:
Mafuyu-sensei being tugged into the shadow at the turn of the corridor…
Rei Ao's teasing smile as he wiped the corner of his mouth…
Mafuyu-sensei reemerging later, clearly flustered…
And earlier still—the "accident" in Rei Ao's living room that had blown their minds.
Every image seemed to burn, stirring up heat and a suffocating embarrassment that twanged the taut strings of their hearts.
Fumino felt her cheeks so hot they could fry an egg.
A strange, restless warmth welled up inside, making her squirm under the covers.
Beside her, Rizu had gone stiff as a board. Her round glasses sat on the nightstand; without them, her violet eyes were wide open in the dark, heart thudding like it might leap out of her throat. A fluttery, hollow ache pulsed low in her belly.
"Fu—Fumino…" Rizu's voice trembled, breaking the oppressive silence.
"Are you… awake too?"
"Mm…" Fumino's muffled answer came from under the quilt, thick with shyness.
"My head's… a total mess…"
Both knew exactly what the other was thinking, but neither dared to say it out loud.
The air itself seemed tinged with that particular mix of youthful awkwardness—bashful, secret, and a little feverish.
Just as the embarrassment and heat were about to swallow them—
"Help!"
A cry cut clearly through the not-so-soundproof wall from the master bedroom next door, like a stone tossed into a still pond.
Fumino and Rizu froze at the same time.
That voice… Mafuyu Kirisu?!
Shock and worry swept away every trace of shame.
"Kirisu-sensei?!" they blurted in unison, jolting upright.
They traded a wide-eyed glance in the dark—pure panic mirroring back.
No hesitation.
Fumino flung off the covers; Rizu fumbled for her glasses and shoved them on.
They didn't even bother with slippers, sprinting barefoot for the master bedroom door, hearts pounding.
"Kirisu-sensei! Are you okay?!" Fumino called, twisting the handle.
Click—the door wasn't locked.
They pushed—hard!
The door banged open.
A bright bedside lamp flooded the hall, making them squint.
The next second, they froze in the doorway like someone had cast a binding spell.
Blank minds.
All their fear, urgency, and momentum shattered against the sheer impact of what they saw.
The scene was… very much adult.
Mafuyu—flushed and breathless—was in the middle of an intimate moment with Rei Ao.
"Help—" The word that had carried through the wall clearly hadn't been a real plea; it was the startled half-cry of someone caught off guard.
Mafuyu heard the commotion and, eyes hazy with moisture, turned her head.
When she registered her two students in the doorway, the haze snapped into pure, blazing mortification.
"Eek—!" A sharp, strangled yelp escaped her. She tried to curl up and yank the covers over herself, but the movement faltered; she could only bury her burning face in the pillow, trembling with shame.
Rei Ao turned his head slowly, meeting the doorway with cool, midnight eyes.
There was no panic on his face—only a slow, amused curve to his mouth, as if this were nothing more than an awkward comedy of timing.
Under that look, Fumino shivered. Her voice finally returned in broken pieces.
"W-we… we must've come at a really bad time! S-sorry! We'll go—right now!"
She grabbed Rizu's hand and started to back out, desperate to flee the scene that felt like it might vaporize her soul from sheer embarrassment.
Rei Ao's voice, low and velvety with a lazy smile, reached them:
"Not now."
But there was no menace in it—only a calm request. His gaze slid over the two women in their thin sleepwear, softening into a gentler apology.
"Everything's fine. Please close the door."
As if nudged by an invisible draft, the door swung inward on its hinges.
Fumino jolted, then hurriedly pulled it shut herself, the latch clicking into place and sealing off the room—along with the outside world.
~~~
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