“Does the teacher have to take a photo, too?”
“Yes. Teachers have to take staff ID photos once a year, too.”
As always, Teacher Iseol smiled gently and prepared to take her picture.
“You don't have to help me, Sihyeok.”
A faint note of resignation colored Teacher Iseol's voice.
“I'm at an age college students dislike. You don't need to help an old lady like me.”
‘Old lady,’ huh.
We were only five or six years apart, and a woman as dazzlingly beautiful as she was—even now—had no business saying such a thing.
That humility only made her shine even more.
Apparently, in this world, a woman past her early twenties lost a great deal of her value.
I stepped closer and looked Teacher Iseol straight in the eye.
Up close, her lightly made-up face looked even purer and more beautiful.
When I stepped closer and looked down at her, her eyes trembled as if she were flustered, like a frightened deer.
“It would be an honor to help someone as beautiful as you, Teacher.”
At my sincere compliment, Iseol's pale cheeks instantly turned peach-colored.
Unaccustomed to receiving such direct praise from a man, she blinked for a moment, unsure what to do.
“You're my first homeroom teacher at the academy, so I really want to help you.”
I smiled playfully and lightly took hold of her arm.
The soft warmth of her skin traveled into my fingertips.
“…Thank you, Sihyeok. Then, I'm sorry, but could you help me take the picture?”
Won over by my persuasion, Teacher Iseol nodded shyly.

From what I heard, staff ID photos could be taken either clothed or nude.
But in most cases, even women with great figures dressed neatly for them.
Apparently, that was because a man had once complained after seeing a less youthful female teacher's nude photo.
I immediately began persuading Teacher Iseol to take a nude staff ID photo, like the rest of us.
Teacher Iseol hesitated, but after I repeatedly insisted that she had to take a nude photo, she soon accepted my proposal.
Her bashfully exposed body was so perfect that it was hard to believe it had been hidden beneath her suit.
She had a sleek abdomen and a healthy, athletic figure, perhaps from exercising regularly.
Even her plain underwear couldn't conceal the sensuality of her body.
“You're beautiful from the front, too, Teacher, but your back is truly a work of art. How about a full-body shot from the front for the front of your staff ID, and one from behind for the back?”
Her backside was firm and attractive, every bit as much as Seo Yeji's thighs had been earlier.
If Yeji's thighs were worth 100 points and the rest of her 90, then Teacher Iseol was about 95 all over.
As I continued praising her figure, Teacher Iseol shyly smiled and said that she regularly practiced yoga and exercised.
Teacher Iseol was persuaded once again and agreed to take the photos as I suggested.
When she swept back her waist-length hair, the first things to catch my eye were her large breasts and nipples that had yet to harden with arousal.
Lowering my gaze slightly, I saw that her pubic hair had been neatly trimmed into a pleasing inverted triangle.
“Just a moment. I'll help you get aroused.”
Since I'd been waiting for this moment, I quickly approached Teacher Iseol.
When I touched her breasts to make her nipples stiffen, I caught the sweet scent of her body.
I grabbed her enormous breasts in both hands, too large for either hand to hold alone, and slowly savored the sensation.
So this was what an older woman's breasts felt like.
For some reason, the sensation felt cozy and warm.
I deliberately met Teacher Iseol's eyes and spoke to her to build up her fondness for me.
“Are you married, Teacher? What about a boyfriend?”
“Ah, no… I have neither.”
“Why not, when you're so beautiful? How old are you?”
“Twenty-five. I graduated from the academy last year, so this is my first teaching assignment.”
At first, she answered shyly, but when my finger lightly pinched her nipple, she clenched her thighs.
Perhaps she was embarrassed by how responsive she was to my touch; her attempt to hold back only made me more aroused.
Then, suddenly, I felt a powerful urge to suck on Teacher Iseol's breasts—or rather, Iseol noona's.
Could my thoughts have shown on my face?
Iseol noona whispered in my ear with languid eyes.
“Do you want to suck them?”
Unlike usual, she exuded a sultry, sexy aura. It was hard to believe this was the usually mild Iseol noona.
Before I knew it, Iseol noona's hand was exploring my back.
She lightly tapped my back with those slender fingers and drew her body a little closer.
Her breasts were briefly pressed against my shirt.
“No one's ever sucked my nipples before. Will you be the first?”
Without even noticing that she had switched to speaking informally, I nodded as if bewitched.
She smiled gently and pulled my head toward her.
Her nipple, hard with arousal, slipped naturally into my mouth.
Instinctively, I held her nipple in my mouth and began sucking like a baby.
“That's it, good. Roll my nipple around with your tongue. Yes, you're doing well. Mmh… right there, haa….”
She hugged me as though I were adorable, embracing me like a large baby.
I could feel Iseol noona's trembling breath against the crown of my head.
Only then did I notice that Iseol noona's mood had changed, but with her nipple in my mouth, I surrendered myself to my lust.
Naturally, no breast milk came out, but the act of sucking an adult woman's nipple was arousing in itself.
Just then, the photographer answered a call and stepped outside for a moment.
“Yeah, I'm working right now… Just a moment. I'm sorry, but I'll take this call and be right back.”
The photographer gestured apologetically to us before hurrying out beyond the curtain. This was my chance.
I continued sucking Iseol noona's nipple as I lowered my free hand and gently stroked her pussy.
“Hngh…!”
Her buttocks twitched, apparently overwhelmed by the pleasure.
Ignoring that, I leisurely rubbed my finger over her soft pussy entrance.
Then I pressed firmly on her clitoris with my index finger, and she held her breath.
I sucked hard on her nipple, and Iseol noona collapsed with a ragged gasp.
Before long, her body trembled, and she let out a sultry moan.
She hugged me even more tightly, as if asking me to suck her nipple harder.
I felt the lewd juices that had just flowed from Iseol noona's pussy wetting my shoe.
“How does it feel to come from my hand? Pretty naughty, isn't it, Teacher?”
Once I pulled my mouth away, I saw that Iseol noona's breasts were covered in my saliva.
The saliva coating them glistened under the lights, making her breasts look even more erotic.
“Yes… it is naughty, hehe.”
Once the shoot was over, Iseol noona approached me while getting dressed, taking advantage of the moment the photographer was checking the results.
Noona's gaze was fixed on the front of my pants.
“I'll call you after school. You need some sexual relief, don't you?”
She blew hot air against my ear and whispered,
“The academy has… a very private sexual-relief room that only the two of us can use.”
That voice left me no room to refuse.
* * *
“All right, everyone. Since we're done with everything for today, you may go home.”
At the teacher's words, the students began gathering their things despite their disappointed expressions. Then the teacher added,
“Sihyeok, stay behind for a moment.”
Chaerin, who was beside me, asked with a puzzled look,
“Is something wrong with Sihyeok?”
“Oh, male students have a separate aptitude questionnaire to fill out instead of choosing a college major. It won't take long.”
Teacher Iseol answered casually.
I couldn't help admiring her composure.
Chaerin and Subin sent me messages saying it was dangerous for a man to walk around alone and that they'd wait for me at the main gate.
By the time those messages arrived, I was already following Iseol noona.
Iseol noona walked ahead of me, swaying her backside sexily as it filled out her suit pants.
She looked as though she were seducing me. Hmm, now that I thought about it, maybe that really was what she intended.
“Most people don't know this, but the academy has a sexual-relief room just for men.”
“A sexual-relief room?”
“Usually, it's empty because men rarely seek sexual relief.”
There was an ordinary-looking door next to the infirmary. The sign on the door read ‘Men's Sexual-Relief Room’.
When I opened it and went inside, the room was chilly, as if no one had used it in a long time.
It had a bed and a sofa, as well as a bathroom and shower room farther inside.
As soon as the door closed, Iseol noona gave off an alluring air completely different from usual and asked me,
“Fellatio, handjob, or paizuri. Which would you like?”
Her tone was confident, as if she were skilled at everything. But instead of answering, I quietly approached her.
I wrapped my left arm around her waist and kissed her.
“Mmph…!”
I could feel Iseol noona's body stiffen at the sudden kiss.
I ignored that and explored her soft lips.
My first kiss was incredibly arousing. I didn't use my tongue or anything; simply rubbing our lips together was enough.
“W-wait… Sihyeok….”
When the kiss ended, the confident air she'd had earlier was nowhere to be found; Iseol noona stammered, visibly flustered.
I hugged her even tighter and said,
“Teacher.”
“…….”
“I want to have sex.”
My blunt words made Teacher Iseol's face flush bright red.
She couldn't say anything, only lowered her head. She looked every inch an untouched virgin.
I smiled and reached for her clothes.
“Take them off.”