6. Flirting from a Mature Older Sister

Page 1 of 3

After leaving the Literature and Arts Club, there was still some time before afternoon classes began.

Kiyomizu Matsudaira wandered leisurely through the campus.

The light rain continued to fall, tapping out a pleasant rhythm along the corridors.

The school buildings, shrouded in the rainy season's mist, exuded a tranquil, waterlogged stillness. From afar, one could just make out the spirited sounds of the brass band, and from the direction of the sports fields, the thud of footballs being kicked and the sharp crack of a bat striking a baseball.

Both the football and baseball clubs were in the midst of intensive training, preparing for the national tournament qualifiers in July.

So even on rainy days, their special training sessions continued undeterred.

Such passionate youth.

By contrast, Kiyomizu Matsudaira, who barely had any friends to speak of, seemed devoid of both roses and youthful fervor.

He rounded a corridor; ahead was the main complex.

The nurse's office and the library were both located on the ground floor of this building.

With his hands in his pockets, Kiyomizu Matsudaira strolled over at an unhurried pace, his distant expression a perfect match for the rainy day.

On days like this, the ground was slick and treacherous, far more prone to causing slips and falls.

“Oh, Kiyomizu, just in time—”

At the corner of the corridor, Kiyomizu Matsudaira ran into a familiar figure: Yumeko Shimamoto, the world history teacher and homeroom instructor for Class 1-F.

In other words, she was his homeroom teacher.

She was mainly responsible for class meetings, home visits, three-way conferences, moral education, and various class affairs...

Yumeko Shimamoto had a sweet, youthful face and a petite frame.

Though she was already twenty-five or twenty-six, she still had the air of a young girl; even a high school uniform wouldn’t have looked out of place on her.

She was gentle in nature and earnest in her teaching.

But she was also prone to forgetting class times, neglecting to prepare materials, going to the wrong classroom, and fumbling through her tasks...

“So heavy, come help your teacher carry—ah!”

Before she could finish her sentence, Yumeko Shimamoto slipped and fell right there in the corridor, sending more than a dozen books scattering across the floor.

Calling her absentminded was almost a compliment.

She was downright silly.

She was nearly at the age to be a mother, and yet she still needed looking after herself.

Kiyomizu Matsudaira stepped forward, first helping her up, concern in his voice: “Did you hurt yourself?”

“No, just banged my knee a little.”

Yumeko Shimamoto frowned slightly, her expression tinged with a small, childlike sense of grievance—as if she were a little girl who’d fallen down, been helped up by an adult, and was now on the verge of tears...

“I’ll take you to the nurse’s office,” Kiyomizu Matsudaira said, gathering up her scattered books.

“Oh, Kiyomizu, you’re a lifesaver. The first period this afternoon is on the Byzantine Empire—once we’re at the nurse’s office, I’ll help you preview the lesson. Come on, say it with me: Long live Byzantium...”

“...Long live Byzantium!”

Page 2 of 3

With an exasperated sigh, Kiyomizu Matsudaira supported her as they entered the main building.

They arrived at the nurse’s office and knocked.

“Come in.”

Hearing a voice from inside, Kiyomizu Matsudaira led his homeroom teacher in, only to be greeted by the sight of a beautiful woman, probably twenty-four or twenty-five.

She exuded a gentle, mature grace, composed and poised.

Her long, jet-black hair was elegantly pinned up. A loose white coat draped over her full upper body, while below she wore a short skirt and black silk stockings—the sleek, dark fabric hugging her shapely, well-proportioned legs to perfection.

This was the school nurse, Yui Mikami.

Ordinarily, such a young, alluring, and voluptuous school nurse existed only in urban legends.

But Yui Mikami was the embodiment of those legends made real.

Her cheerful and open nature, along with her striking looks and figure, made her extremely popular among the students.

The key point: she had never dated anyone.

She was a radiant, passionate flower—yet untouched by any man.

As Yumeko Shimamoto’s close friend, she often visited Class 1-F, so Kiyomizu Matsudaira had a vivid impression of her.

Yui Mikami had a playful streak, and whenever she saw a cool, aloof boy like him, she couldn’t resist teasing him, just to see him blush and flustered—a contrast she found irresistible. Over the two months since the start of term, she’d made a habit of it.

After much back-and-forth, the two of them had developed a certain rapport.

When she saw her friend and a student enter, Yui Mikami struck a pose worthy of an urban legend—crossing one long, shapely black-stockinged leg in front of a boy in the flush of adolescence, a mischievous smile playing on her lips.

“Oh, Kiyomizu, how thoughtful. Not only have you come to see me, you’ve even brought a gift...”

A gift?

Kiyomizu Matsudaira glanced around.

One hand held the books, the other supported Yumeko Shimamoto.

After a moment’s thought, he pushed Yumeko Shimamoto forward, announcing, “Here, catch your gift.”

“Huh?” Yumeko Shimamoto looked utterly confused.

Yui Mikami caught her friend easily, glanced at her knee, and her playful expression softened.

“Your knees are all bruised—how could you let her get hurt like that?”

“She did it herself...”

“No need to explain. Boys can be impulsive, after all—sometimes you don’t pay attention to a girl’s feelings, and that’s only natural.” As Yui Mikami spoke, she helped her friend onto the bed and went to the medicine cabinet for supplies.

“Um? Excuse me, what are you talking about?” Kiyomizu asked.

“Oh, no need to spell it out.” Yui Mikami turned, holding a bottle of spray medicine, and pressed her index finger gently to Kiyomizu’s lips, smiling sweetly. “Whatever you and Yumeko got up to, that’s your little secret.”

A beauty mark adorned the corner of her right eye.

When she smiled, it only enhanced her sultry, mature allure.

This elegant woman, pressing her slender, fair fingertip to a high school boy’s lips, graced him with a sweet, teasing smile…

Page 3 of 3

Kiyomizu Matsudaira felt his cheeks grow warm—he’d definitely been charmed.

The cool, delicate touch of her fingertip on his lips was surprisingly pleasant.

A mature woman like this was dangerously alluring—her sensual lips carried an understated temptation, and the slant of her long eyes was infused with flirtatious grace.

He couldn’t help thinking that if Yui Mikami ever got serious, she could easily devour a boy like him, body and soul.

She held his gaze, smiling meaningfully.

It was hard to tell if she was savoring the fun of teasing a young man, or simply enjoying the subtle, mutual attraction that lingered as they stared at each other, motionless, for what felt like a long time. Both of them seemed to forget everything else.

Meanwhile, the petite, scatterbrained teacher nursing a bruised knee was left to the side, bewildered.

What in the world were those two doing?

Why did it give her the impression that they were in a world for grown-ups?

“Hey! What are you two doing over there?”

After a while, Yumeko Shimamoto frowned, sensing something was off and quickly spoke up, “Yui, hurry up and give me that spray! And you, Kiyomizu, please return these books to the library for me! If you keep standing there like that, I’m going to get angry!”

“Alright, I’ll go now,” Kiyomizu Matsudaira replied, looking at his teacher.

“And from now on, don’t get too close to that woman!” Yumeko Shimamoto scolded sternly.

Kiyomizu nodded obediently. “Understood.”

Seeing her student so well-behaved, Yumeko Shimamoto smiled like a little girl who is easily appeased. “Now, hurry and return those books for me.”

“Take good care of her,” Kiyomizu said to Yui Mikami.

The voluptuous school nurse blew him a kiss. “Hurry back, I’ll be waiting. By the way, the new librarian this term is a real beauty—I’ve gotten to know her. If you want to win her over, I can help...”

“Yui!!!”

Yumeko Shimamoto shot her friend a fierce glare.

This woman had no sense of boundaries! It was one thing to get along with students, but a teacher should maintain some dignity!

How could she help a student pursue another teacher?

“Alright, I’ll stop. Yumeko’s getting jealous.” Yui Mikami covered her mouth in exaggerated shock.

“Yui!!!” This time, Yumeko Shimamoto was genuinely upset.

“Oh, you don’t want her? That’s fine.” Yui Mikami spread her arms wide, as if she were about to pounce on Kiyomizu Matsudaira. “Kiyomizu, I’ll date you instead.”

“Yui, watch yourself!” Yumeko Shimamoto raised her hand, threatening to strike. “We’re both teachers! How can a teacher date a student?”

Yui Mikami tilted her head, giving her friend a look that said, “are you serious?” “To be precise, I’m a doctor, not a teacher! Your rules don’t apply to me. What’s that got to do with you?”

“...Huh?”

Yumeko Shimamoto was momentarily thrown off.

Come to think of it, her friend really could go after her own students, couldn’t she? What on earth was she going to do about that...