Waves of the Incubus - Chapter 21

 Music Teacher

Morning assembly begins as usual.

Since the vice principal, Usami, is in the hospital, a Japanese language teacher named Yamada is hosting in his place. However, in stark contrast to Usami—who is smart and explains announcements clearly—Yamada’s explanations are rough and hard to follow, leaving the teachers listening in the staff room with troubled expressions.

In the middle of this boring and gloomy time, Tomomi Honda, a part-time music teacher, suddenly realizes she is following a certain man with her eyes.

(No... not again... what am I doing...)

That man, sitting quite a distance away in the staff room, also looks bored, though he pretends to listen to Yamada's talk. Looking at his featureless face, Tomomi realizes she was staring again and blushes all by herself.

It has been over three years since she was hired at Eris Girls' Academy. After graduating from music school, she was fortunate enough to use her father's connections to be hired as a part-time music teacher at two high schools, coming to her alma mater, Eris Girls' Academy, on Wednesdays, Thursdays, and Fridays.

Since it is a part-time position, the hourly wage is mere pittance, but in return, she isn't tied down by club activities and has plenty of free time. Above all, as a young lady whose father manages a major company, a little more or less pay is not a big issue. Furthermore, she has a fiancé and is scheduled to get married soon, at which point she plans to resign upon marriage.

"...That concludes today's announcements. Let's do our best today as well."

Yamada, with his rough and careless personality, forcefully brought the morning assembly to an end while skipping detailed explanations. Since the announcements themselves are circulated on paper and posted on the board, doing it this way doesn't cause any major problems anyway.

(Today, starting from the 3rd period, I have Class 2-1 and Class 2-2...)

Music classes are concentrated into three days—Wednesday, Thursday, and Friday—to match Tomomi's schedule, but since classes are combined for two sections at a time, the number of periods isn't high. Therefore, her first two periods this morning are free, allowing her time to prepare for her lessons.

Glancing up, she sees that teacher leaving the staff room. Like her, he should have no classes this morning, yet that man is never in the staff room. He seems to stay shut in a room located at the very edge of the top floor of the school building.

The other teachers rumor that he is an eccentric. She thought so too.

However, that science teacher won't leave her mind.

(Because... because I had a dream like that...)

Tomomi recalls her embarrassingly shameful dream from today as well, making her heart pound wildly in the now-empty morning staff room.

The 4th period ends, concluding the lesson for the two 2nd-year classes. The students chatter and joke around as they tidy up their sheet music and instruments in the music room, before heading back to their respective classrooms with friends once finished.

(Huh? That girl...)

Among them, she notices a single student cleaning up her instrument alone and stares at her face for a moment. While many students gather in their respective groups of friends, this student stands out as if floating completely isolated. Her unusually short skirt catches Tomomi's eye.

(But... didn't she have a lot of friends...?)

That healthy, tan-skinned student used to have a bright, well-liked personality, always at the center of the crowd. She was supposed to be the captain of the tennis club, a lively girl gifted at sports.

Yet now, the beautiful girl in Tomomi's line of sight carries an atmosphere of a completely different person.

How should one describe it when she is just standing there? A sticky, sensual charm or sexual appeal oozes from her entire body. Far beyond what one would expect from a 10th grader, her posture exudes the aura of a mature woman—the voluptuous charm of a fully ripe housewife.

It is no wonder she stands out from those around her.

"K-Kawashima-san...?"

When Tomomi speaks to Aiko Kawashima of Class 2-1, the girl does not seem troubled or bothered by being alone.

"...Honda-sensei... Did you need something?"

As she turns around to face Tomomi, there isn't a shadow of bullying or exclusion on her face. Yet, on the other hand, the sun-like brightness that this girl should have possessed is gone; what remains is the air of an adult woman. No, something even more lascivious.

"A-Are you... did something happen? Your atmosphere has changed so much..."

"...Is that so? Nothing has really changed though..."

As Aiko says this with a faint smile, her expression looks far more mature than Tomomi's own 26 years.

(Could it be...? They say high schoolers experience it in the summer...)

Many high school girls lose their virginity during summer break and join the ranks of adult women. Even at Eris Girls' Academy, an elite school known for its strict education, a few such students existed every year. However, the Aiko she knew was not that type; she was an innocent, cheerful tennis girl.

"I-Isn't that skirt a bit too short...?"

"...This? But the other girls wear it around this length too, don't they?"

The serious music teacher browses in displeasure at the ultra-miniskirt that sits 30 cm above the knees.

"B-But won't people be able to see under it...?"

"...If they want to look, why not let them look? I don't mind."

Aiko, who smiles as she says this, seems downright decadent and voluptuous. Looking at that expression, Tomomi shivers all over despite it not being cold.

"If you don't need anything else, may I go? I have somewhere to drop by..."

"...A-Ah, yes... Of course..."

The beautiful girl smiles faintly, takes her textbook in hand, and prepares to leave the music room alone.

"...K-Kawashima-san... Where are you dropping by...?"

After asking, Tomomi surprises even herself. She doesn't know why she asked, but the words slipped out blurted in the moment.

"The science preparation room... It's close since it's on the same floor, right?"

Looking back at the door as she says this, Aiko licks her lips for some unknown reason and smirks. Seeing that face, a full-blown chill runs down Tomomi's spine.

The next day.

Having finished 4th period in the same manner, Tomomi watches to ensure the 1st-year students head back to their respective classrooms. The girls who finished choir practice compliment and tease each other's singing voices, chatting and giggling happily.

(Now then... I should head back to the staff room too.)

Checking to make sure the last student has left, she checks the room once more to see if anything was forgotten. Confirming everything is fine, she closes the door and steps into the hallway. Since she has a 3rd-year class this afternoon anyway, she will be coming back. There's no need to lock it.

Just then, her eyes catch a single student walking far on the opposite side of the hallway. On the 5th floor, the top floor of the building, there are no regular classrooms; only special-purpose rooms line the hall. Walking here just before lunchtime is a bit strange timing-wise.

(Huh...? Is that... Kawashima-san??)

It appears to be Aiko Kawashima, the 2nd-year student and tennis club captain she talked to briefly yesterday. Though she can only see her back from a distance, her walk and demeanor match her memory of Aiko.

(Going to the science preparation room at this hour again...? She went yesterday too. Why...?)

Something inside her head sounds a warning. Whether that warning is for Aiko or for herself, Tomomi cannot tell.

Before she realizes it, she finds herself slowly walking toward that room on the north end. Walking quietly without making a sound, she steps closer and closer.

Few people usually pass through here. Stagnant, cold air seems to hang in the back of the hallway. The smell of school wax applied during summer break clings to her body, mixed with a sour odor.

(She went in here, right?)

Stopping in front of the door labeled "Science Preparation Room," she holds her breath to listen. No sound comes from inside; in this place isolated from the lunchtime bustle, quietness reigns.

Then, her eyes catch the open door of the adjacent science classroom. The science room and the preparation room are right next to each other, both facing the hallway with doors, but they are also connected to each other by an inner door.

The pitch-black science classroom is naturally empty, with no sign of anyone inside. Gathering her courage to peek in, she sees the inner door connecting to the science preparation room slightly ajar, with a faint light leaking through.

(I'll just check what they're doing and leave...)

As if drawn into the open door of the science room, Tomomi slowly steps inside. The science classroom is dark even during the day because black curtains are drawn over the windows, giving it an eerie atmosphere.

(A strange smell... and somehow creeping me out...)

A pungent chemical odor hits her nose, making Tomomi regret entering. Why did she come to such an uncomfortable place? Unable to understand her own actions, her earlier curiosity instantly vanishes.

(I-I should... stop this after all...)

Feeling an indescribable, intense sense of danger, she hurriedly turns to go back.

"...Ahhh... Nooo..."

At that moment, hearing a woman's voice clearly, Tomomi freezes in shock. The voice seems to have come from the science preparation room.

(...Eh... If so... Kawashima-san?)

Inside the science preparation room must be the science teacher, Kenichi Mido, and the 2nd-year student, Aiko Kawashima, who entered just now. She doesn't know what the two of them are doing in this deserted place, but is that voice the answer?

"...Nnn... Yaaah..."

(Eek!!)

This time it is heard even more clearly—a sweet moan unmistakably uttered by a woman. It is a vivid, sensual gasp far too explicit for a high school girl to make.

The answer indicated by that voice is clear. However, for Tomomi, who has zero experience with men, this is an unknown world.

Born as a wealthy young lady, Tomomi was raised pure and sheltered from kindergarten through university. Her father, who dotes on her, is a strict Catholic who never permitted her to socialize with men. Although she has a fiancé, she has only kissed, remaining a pure virgin even at 26 years old.

(Just a little... I'll just check what they're doing and leave immediately...)

Her curiosity wins over her fear once more as she walks slowly without making a sound. The soles of her nurse shoes are made of rubber, allowing her to walk on the linoleum floor without making any noise at all.

Finally reaching the door connecting to the science preparation room, she notices the gap in the door is slightly open. Light leaks from the inside; the curtains in the adjacent room appear to be open.

Moving with extreme caution to avoid making noise, she aligns her eyes with the crack. Her eyes, unfocused for a moment, adjust to the brightness and begin to form the scene inside onto her retina.

(!!!)

She desperately suppresses a scream that almost slips out. The scene before her is shocking.

Facing her direction, the male science teacher in a suit stands tall. At his crotch, a female student with her back turned kneels on the floor, slowly moving her head back and forth. The female student's face cannot be seen because she faces away, but judging by her back and hairstyle, it is undoubtedly Aiko Kawashima.

(Eek... T-That... could it be...)

Though she has never experienced it herself, she knows from information that women caress men's genitals with their mouths. To the virgin Tomomi, it was an incredibly filthy act, yet the female student in front of her is clearly performing it.

(No way... licking the place where urine comes out... That's disgusting...)

Tomomi feels disgusted with a virgin's sense of cleanliness, yet at the same time, her body feels hot and excited beyond belief. Saliva gathers in her mouth, which she swallows gulp by gulp, taking care not to make a sound.

"...Mmmph... Aah, mmm..."

Listening closely, along with the sweet voice raised by the girl, obscene wet slurping sounds can be heard. Matching the movement of Aiko's swaying ponytail, that sound reverberates rhythmically through the quiet science room.

As she watches in daze for a while, the science teacher speaks to Aiko. When the girl stops her obscene task, the man unbuckles his belt with a metallic clinking sound.

(Eek!)

Lowering his trousers, his lower body becomes bare, and he turns sideways. The girl then moves directly in front of him.

(Hyaaah! What... is that!! What is going on!!!)

She desperately holds back a scream from leaking out. The scene before her eyes is that shocking.

A long, black sword-like object erects straight up from the man's lower body. Its surface reflects the light coming through the window, shining dull and obscene.

(Ahhh... That... That is a man's...)

For Tomomi, who has never seen an erect penis, it is an object of unmistakable fear and disgust. That male organ, bending upward ugly and fierce, had an ominous shape completely different from what she had seen of her father's when she was a child.

Yet, despite being before a swollen penis that looks filthy and hideous from Tomomi's perspective, the beautiful girl sitting on the floor surprisingly chuckles, "Ufufu." Entwining her arched white fingers around it, she strokes it up and down in a slow movement.

(N-No... K-Kawashima-san...)

Until now, her head was blocking the view, but seeing it directly like this, the act is obscene and far from something a teenage girl should be doing. Yet Aiko continues her indecent task, smiling all the while.

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