Kirisu Mafuyu is one of the five popular young female teachers at Ohananomitsu High School, along with Nakano Itsuki, Hiratsuka Shizuka, Tachibana Hina, and Minagawa Akane.
Mafuyu is a woman in her mid-20s with striking pink hair and green eyes. Thanks to her background as a professional figure skater, she has a slender body shaped by years of training.
At school, Mafuyu always appears professional in her signature suit, black stockings, and dark red high heels. Her beauty is often a topic of conversation among her male colleagues and students. However, her cold and blunt personality leads many to perceive her as unfriendly. Her fellow teachers consider her too rigid, while her students feel she is too strict in her teaching.
During lunch break, the door to the teachers' room was knocked. Mafuyu, who was reviewing student files, looked up and saw Rokuhara Ren standing at the doorway.
"Excuse me, Kirisu-sensei. May I have a moment?" Ren asked politely.
Mafuyu nodded and gestured for Ren to enter. "How can I help you, Rokuhara-kun?"
To her, Rokuhara Ren was a problematic student, notorious for his relationship with Hayasaka Ai, a female student who transferred from Shuchi'in Academy to Ohananomitsu High School—a decision that surprised many, given that Shuchi'in Academy is an elite school for influential families.
The fact that an ordinary student like Ren was involved with a girl from Shuchi'in Academy naturally drew a lot of attention.
"..."
Unaware of Mafuyu's negative opinion of him, Ren sat down in the chair in front of her desk and pulled out a letter from his bag.
"I'd like to request a week's leave. There's something urgent that requires me to go to London."
Mafuyu frowned. "Leave? Now? Rokuhara-kun, exams are approaching. This is a critical time for students. Can't you go after the exams are over?"
"Kirisu-sensei, this is an urgent matter. Please, I can't miss it no matter what." Ren pleaded with a serious expression.
It was a lie.
In truth, he had no important business. Ren simply prioritized the trip to London over his school exams.
Unlike the majority of students who study to get into good universities and secure a bright future, Ren was already at the top of his life. With the support of the Shinomiya family, he would never lack money. In short, he had achieved financial freedom, which made him less concerned about academic performance.
Mafuyu stared at him intently, trying to gauge the sincerity of his request. After a moment, she sighed.
"Very well, but remember to return as soon as your business is done."
After thanking Mafuyu, Ren left the teachers' office with a light step. In the hallway, he ran into Suou Yuki.
"Good day, Rokuhara-kun. What were you doing in the teachers' office?" Yuki asked in her typical formal tone.
Yuki's surprise was fleeting before she resumed her demeanor as a young lady from a noble family—an attitude she always maintained in the school environment.
"Just taking care of some leave paperwork. By the way, Suou-san, it seems you've kept your promise."
Ren smiled lightly, referring to the incident the day before when Yuki accidentally saw him with Masha having sex in the storage room. Yuki had promised him she wouldn't tell anyone about it.
"Of course, I'm not one to go back on my word." Yuki replied firmly, though her face turned slightly red at the memory.
"As a token of gratitude, I have something for you."
Ren pulled a flash drive from his pocket and handed it to her.
"What's this?" Yuki asked, confused.
Ren patted her shoulder and said in a low voice, "It's my collection. It might be useful to you."
Without waiting for a response, he continued on his way, leaving Yuki puzzled by the sudden gift.
"Collection? This isn't what I imagined, is it? Rokuhara-kun doesn't have that kind of hobby, does he?"
As a hardcore otaku, Yuki had wild speculations about the contents of the flash drive Ren had given her.
◆━⊰✧⊱━◆
Curious about the contents of the flash drive, Yuki decided to go to the school's computer room. As a member of the student council, she had the privilege of borrowing keys to any room in the school. After arriving at the empty computer room, she locked the door from the inside to ensure no one would enter unexpectedly.
With slightly trembling hands, Yuki turned on one of the computers and plugged in the flash drive. After a few moments, the screen displayed the contents of the flash drive.
Her eyes widened as she saw only three folders with names she knew very well: Nakano Itsuki, Maria Mikhailovna Kujou, and Hayasaka Ai.
"Oi oi oi... Don't tell me the collection he mentioned is videos of him having sex with these women, right? Even Nakano-sensei's name is here!"
When alone, Yuki always shed the persona of a young lady she displayed in front of others, returning to her true self—an otaku with eccentric and childish tendencies.
"Let's check Maria-san's folder first." Yuki decided after some thought. After all, she and Maria were both members of the student council. Besides, she had already seen Ren and Masha having sex in the storage room the day before.
With her heart pounding, Yuki moved the mouse and double-clicked the folder. Her eyes widened as she saw dozens of video files inside. After swallowing hard, she put on the headphones available at the computer and played one of the videos.
Her speculation was correct. The video showed Ren and Masha in an intimate situation in what appeared to be a hotel room. Yuki was transfixed, unable to look away from the screen despite her face turning red with embarrassment.
Suddenly, a thought crossed her mind. She quickly closed the video and switched to the folder named Nakano Itsuki.
"Don't tell me... Rokuhara-kun is the one who got Nakano-sensei pregnant? Oh my, that guy is more of a scumbag than I thought."
Once again, her speculation was confirmed. The video clearly showed that the naked woman with Ren was Itsuki, the homeroom teacher of Class 2-B, who was currently on maternity leave. There was even a video of them having sex showing Itsuki with a visibly pregnant belly.
"...!!!"
Yuki sat frozen in her chair. A strange feeling began to emerge within her—something she had never felt before.
"This is weird... Why do I feel aroused watching Rokuhara-kun having sex with other women, when I don't feel anything watching other adult videos?" She muttered in confusion, touching her slim lower abdomen.
A long-held dream now seemed to mock her. Her body, which refused to mature like other girls her age. Her heart, still tied to her physical condition—part of her still innocent like a child.
A fact not many people knew was that Yuki suffered from a medical condition that caused amenorrhea. Her puberty did not progress properly, and her body did not develop as it should for a woman. She was in a physical state that made it impossible for her to carry out normal reproductive functions. At her current age, she had not even experienced her first menstruation.
Due to this condition, Yuki's chances of infertility were very high. It could be said that her body was almost incapable of reproduction. This also caused her appearance to be more tomboyish and childlike compared to her female peers.
Until now, even when trying to watch adult content, Yuki had never felt any arousal. However, she was shocked to feel her body reacting when she saw Ren and Masha having sex like animals in the storage room the day before, leading her to masturbate while watching. And now, the same sensation returned as she watched the videos on the flash drive.
"Why do I only get aroused by Rokuhara-kun when he's with other women?"
Then, Yuki pulled down her panties, her hands slipped under her skirt, and she started masturbating while watching the perverted video on the screen.