A beautiful morning—the beginning of a new day.
Ryo Jin, who had been kept up until midnight by his drunk roommate last night, wanted nothing more than to sleep in.
Since he didn't have an early part-time shift today, he planned to sleep until noon—at least another three hours of peace.
"Mmm~?"
Unfortunately, the soft, sleepy murmur brushing against his ear triggered his inner alarm system like a reflex.
Ryo opened his eyes.
Right in front of him was the face of the beautiful underclassman, Kasumi Yoshizawa.
She had a small, delicate face prettier than most idols, her perfectly balanced features both radiant and sweet, yet still holding that fragile touch of girlish innocence.
This was beauty untouched by filters—pure, natural, and healthy.
If girls were made of sugar, spice, and everything nice, then God must have had trembling hands when creating her, accidentally pouring in a hundred times the usual dose.
It was truly unfair. Ryo could understand why other girls would be jealous of her.
After all, it wasn't just her looks.
Kasumi was a national-level gymnastics prodigy, a rising star in the sports world. She lived in a realm far removed from ordinary people.
Hard to believe that only a month ago, she'd still been a third-year middle schooler… a middle schooler!
"But that's expired now, so I guess she counts as a high schooler," Ryo muttered.
Even as he complained, he pulled her into his arms, using her soft body as a luxurious pillow.
Most schools in Japan ran on a three-term system, with the academic year starting in April.
Right now, it was spring break, just before the new term began.
This girl—who had been a junior high student not long ago—would soon make her high school debut and instantly become the school's most admired beauty.
Although Ryo worried she might draw too much attention and become a target for jealousy or bullying—stories like that had been popular topics in recent years—he trusted Kasumi's charm and social grace would easily keep her out of trouble.
She wasn't just beautiful and athletic.She was talented, confident, and socially gifted—a girl truly blessed by the world.
If she had one flaw, it was her habit of sneaking into Ryo's bed, completely unaware of how dangerous that could be for a man's self-control.
That girl seriously needed some "education."
Ryo decided he'd have to give her a bit of a lesson someday, just to prevent her from being tricked by any sleazy guys out there…
But not today. Today, he simply wanted to enjoy the soft warmth of the girl in his arms.
Just as Ryo was about to drift off again, savoring the perfect morning, another girl's voice chirped by his ear:
"Senpai, senpai, senpai~! …If you don't get up soon, I'm gonna pull your pants down, okay?"
"—Sorry, Miss Sumire. I'm up, I'm up."
The girl who had issued that cheerful threat was already halfway under the blanket, fingers hooked around his waistband.
She really was the type to act faster than she talked.
To avoid dying young at the hands of the sisters' furious father, Ryo quickly threw off the covers, got up, and greeted the girl standing by the bed.
"Good morning, Sumire Yoshizawa. You look beautiful in that apron today—you'll definitely make a wonderful wife someday."
"R-really? Aww, senpai, don't flatter me like that~"
Sumire Yoshizawa—Kasumi's identical twin sister—was as easy to please as ever. One simple compliment from Ryo was enough to make her blush and lose all composure.
Unlike her messy-haired sister still sprawled on the bed, Sumire wore her long, flowing hair down, giving her a soft, feminine charm. The glasses perched on her nose added a touch of quiet gentleness to her otherwise cheerful demeanor.
The apron she wore only made her seem more like the perfect wife, especially since she had been up early cooking breakfast for Ryo and her sister.
These two twins—so young and already like this… what would they become in the future? Ryo sighed with mock-aged weariness.
The noise woke Kasumi, who stretched lazily and sat up.
Two smooth, serpentine arms immediately coiled around Ryo's arm.
"Good morning, Ryo-ni~ and Sumire~… Is breakfast ready? Smells sooo good~"
Seeing her sister cling to him so shamelessly, Sumire immediately pouted in jealousy.
Hands on her hips, she scolded her older sister like a professional housewife:
"It's almost done! And put your clothes on already! I only looked away for one second, and you're already all over him again… you're making senpai uncomfortable, you know! You should be ashamed!"
"Huh? No way."
Kasumi giggled, her mischievous rose-colored eyes glinting playfully as she leaned even closer to Ryo's face.
Her long lashes trembled as she blew a teasing puff of air against his cheek.
"Ryo-ni doesn't think I'm a bother, right? Right? Really~?"
…That wasn't just flirting anymore.
That was a direct challenge—a public display of dominance right in front of her twin sister.
And since she was still holding onto his arm, the "bribe" was effective—Ryo couldn't exactly lie and say he didn't enjoy it.
But the younger twin, Sumire, now radiated so much jealous energy that Ryo could almost see the dark aura forming around her.
After a long moment of contemplation—debating whether one missed meal was better than missing every future one—Ryo finally placed his hand on Kasumi's shoulder and spoke with mock sternness.
"Kasumi, you should learn from Sumire. Girls need to be more self-respecting… and at least don't leave your underwear lying around next time. It's unhygienic."
Ryo glanced at the floor.
A pair of pink lace panties, half-cup design—far too daring for a girl her age. Probably what they call "decisive lingerie."
Girls really did pay attention to details like that.
Kasumi pouted at his deliberate coldness, mirroring her sister's earlier expression perfectly.
In contrast, Sumire beamed and immediately slipped her small, soft hand into Ryo's.
"Ryo-senpai, I've already prepared your change of clothes—they're hanging in the bathroom. And I saw your dirty clothes from yesterday, so I went ahead and washed them too."
"As for your under—um, I mean your undershirt—it was getting a little worn out, so I replaced it with a new one. You can have breakfast after washing up, okay? Please go ahead~"
Her attentiveness bordered on frightening.
For twin beauties who were still middle schoolers just a month ago, the Yoshizawa sisters were truly terrifying in their own way.
Ryo couldn't help but feel a sense of sinful luxury—as if he was living far too indulgently, bound for divine punishment.
…But to be fair, even the seemingly perfect Sumire slipped up in her words.
My dear, diligent junior… what exactly did you do with the old underwear you replaced?
Considering how dangerous that question was—it could easily trigger a hidden boss fight—Ryo decided it was best to pretend he hadn't noticed and quietly filed it away in his mental archive titled "Sumire Yoshizawa: Top Secret Record."