A beautiful morning—the beginning of a new day.
After being tormented late into the night by his drunken roommate, Asakura Rinto had hoped to sleep in today.
Since he didn't have a morning shift at his part-time job, he planned to stay in bed until noon—at least three more hours, ideally.
"Mmm~?"
Unfortunately, the soft, sleepy murmur that brushed past his ear triggered an instant alert in his internal system.
Rinto opened his eyes.
What greeted him up close was the face of the stunning underclassman, Yoshizawa Kasumi.
She had a delicate face even prettier than most idols, her features flawlessly balanced—radiant and sweet, yet retaining the soft, youthful charm of a girl her age.
This was beauty stripped of all pretense—purer than any "pro," "max," or "ultra" grade label. A vision of natural, wholesome elegance.
If girls were made of sugar, spice, and everything nice, then God's hand must have slipped when making her, accidentally dumping in a hundred times the usual concentration.
It really was unfair. Rinto completely understood why other girls were jealous of her.
After all, being beautiful would've been enough on its own—
But this girl was also a national-level gymnastics champion. A child star of the athletic world. She lived in a different realm entirely from ordinary people.
Hard to believe that just a month ago, she was still a third-year middle schooler… A middle schooler, for god's sake.
"Well, she's technically expired now. I guess we can call her a high schooler."
Rinto muttered under his breath, while casually tightening his hold around her. She made for an extremely luxurious human pillow.
Most schools in Japan followed a three-term system, with the new academic year starting in April.
And right now, it was spring break—just a week away from the opening ceremony.
This girl, who had only recently been a junior high student, was about to make her grand debut as a high school beauty that turned every head in the school.
Rinto was a little worried that someone so dazzling would end up a target of bullying from jealous girls—those stories were all the rage lately.
But at the same time, he trusted in Kasumi's ability to navigate social waters. She wasn't just a pretty face with a great body.
She was talented, poised, and—most dangerously—effortlessly charismatic. The kind of girl fate clearly favored.
If she had any flaws, it was that she had a bad habit of sneaking into Rinto's bed, completely oblivious to how dangerous it was to tempt a man's baser instincts.
That was something he seriously needed to teach her—before she got swindled by some shady guy on the outside.
But… maybe not today.
Today, Rinto just wanted to bask in the warmth of this soft, fragrant girl in his arms.
Just as he was about to lean into the comfort of her presence, another girl's voice piped up by his ear:
"Senpai, senpai, senpai~! …If you don't get up and stop cuddling my sister, I'm gonna pull your pants off."
"—Sorry, Miss Sumire. I'm getting up right now."
Even as she issued the threat, the girl at his bedside had already slid one hand under the blanket and grabbed his waistband.
She really was the kind of person whose actions outpaced her words—by a long shot.
Not wanting to get his head cracked open by the twins' father, Rinto quickly tossed off the blanket and sat up, greeting the girl at the bedside:
"Good morning, Yoshizawa Sumire. You look lovely in your apron today—you're sure to make a wonderful wife someday."
"...Really?~~~ You're such a tease, senpai, don't flatter me like that~!"
Sumire—who looked exactly like her sister Kasumi lying in bed—was as easy to please as always, already blushing and flustered from a single compliment.
Unlike her disheveled older sister, Sumire wore her long, slightly more mature hair loose, with glasses that lent her a quiet, reserved air.
She had on a cozy house apron and had already started making breakfast for her sister and Rinto. Everything about her practically screamed perfect wife material.
They're still so young... how's this going to play out when they're older? Rinto thought, feeling like a world-weary old man.
The commotion had woken Kasumi as well.
She stretched lazily and sat up, her two sleek, snake-like arms naturally curling around Rinto's.
"Good morning, Rinto-nii~ And you too, Sumire~... Is breakfast ready? Smells amazing~"
Seeing her sister act so shamelessly, Sumire immediately puffed up in jealousy.
She crossed her arms and launched into a practiced lecture:
"It'll be ready soon. And you—put some clothes on already! I only looked away for a second, and you're already clinging to senpai like that… You're making him uncomfortable, aren't you? You should be ashamed!"
"Ehh~? No way~"
Kasumi giggled, her sparkling rose-colored eyes glancing mischievously at Rinto.
She leaned in even closer, as if daring him to count every lash on her impossibly long eyelashes, and blew softly on his cheek:
"Rinto-nii, am I really making you uncomfortable? Huh? Huh? Really~?"
…That wasn't even subtle flirting anymore.
She was straight-up marking her territory in front of her sister.
And honestly, with her still holding onto his arm like this, Rinto couldn't in good conscience say he disliked it.
But now Sumire, the younger of the two, was practically radiating black aura at the bedside, her resentment nearly taking physical form.
That gave Rinto pause.
In the end—after weighing the pain of skipping one breakfast versus missing all breakfasts—he cleared his throat, gently pushing Kasumi back by the shoulders.
"Kasumi, you should really follow Sumire's example. A girl needs to take better care of herself. …And next time, don't just leave your underwear lying around. It's unsanitary."
Rinto's eyes flicked toward the lacy pink bra at the edge of the bed.
Half-cup. Lace trim. A little too bold for someone her age—clearly a "victory bra."
Girls paid scary levels of attention to this kind of thing. You couldn't afford to underestimate them.
Kasumi puffed up her cheeks at his deliberately cold tone, mirroring her sister's earlier pout almost perfectly.
Meanwhile, Sumire beamed with triumph, her smooth hand gently pulling Rinto by the wrist:
"Senpai, I've already put out your change of clothes—they're hanging in the bathroom. I also did the laundry and washed the clothes you left in the hamper yesterday."
"And as for your, um… underthings—I noticed they were getting a bit worn, so I got you a new pair. You can wash up and come eat breakfast right after, okay~?"
Her detailed level of care was enough to make anyone a little scared.
These twin beauties, barely a month out of middle school, were downright terrifying—and Rinto couldn't help but feel a sinful sort of guilt, like he was enjoying something too indulgent.
…That said, even the seemingly perfect Sumire still had her cracks.
My dear, diligent little underclassman… What exactly did you do with my old underwear after you "replaced" it?
Rinto wisely decided to keep that question to himself.
Asking it would only unlock a hidden boss battle.
So he quietly filed it away under his mental folder: Yoshizawa Sumire - Top Secret Archives.