Chapter 25

[Quest Title]: Get Tutoring from a 'Vagina Training' Home Tutor

[Alteration Depth]: 4

[Quest Rules]

1. Shisho Reika is a home tutor, and Kimoda Hideo is her student.

2. The subject Reika teaches Hideo is 'Vagina Training,' and the learning objective is to create an excellent man who can subdue and train women using his penis.

3. Reika must answer any questions Hideo asks as a teacher.

4. Reika must dedicate herself wholeheartedly to Hideo's education and be genuinely proud of his academic enthusiasm.

5. Other detailed settings can be heard directly from Reika's mouth.

The Common Sense Alteration Gacha, invariably updated after a single night.

Today, the alteration depth was 4.

,,Oh, so it goes from alteration depth 1 to 5?"

The vaginas' reactions varied entirely depending on the alteration depth. From Shiori, who clearly underwent extreme changes, to Hana, who was almost completely sober.

The limit of the alteration depth isn't specified separately, but considering Shiori's perversion, it's hard to imagine that a higher alteration depth is possible.

If it were possible, wouldn't that already be a matter of transcendence rather than common sense alteration?

,,So, with this, I'm experiencing all alteration depths from 1 to 5?"

If so, is there any regularity in the selection of the alteration depth?

If it's 100% random, the probability of the numbers from 1 to 5 all appearing without any overlap is about 4%. It's hard to think of that as a high probability. So, it's worth considering the possibility that it's not 100% random and that a certain rule is hidden behind it.

If so, is there a way to predict the subsequent alteration depths?

...Hideo didn't think that.

Of course, that's because it was a hassle.

There's no way that high-level thinking activities like racking his brain and considering the future are possible for a half-beast like Hideo.

What Hideo felt was just a childish impression of 'Oh, that's amazing' at best.

More than that.

,,Hihihihit, this time it's a home tutor... That's good too. After all, it's a steady seller in the erotic doujin world."

Apart from the absolute powerhouse that is the high school girl, it can be seen as one of the most frequently used tropes.

To put it lightly, it's safe to say that it's in the top 10 most frequently appearing jobs in erotic doujinshi.

Of course, Hideo also enjoyed home tutor stuff. The problem, if there is one, is that he only enjoys NTR stuff and not pure love stories.

,,If it's a tutor, there's nothing written separately, but I guess she'll come to my house on her own? Hmm..."

Hideo looked around his house.

The chaotic mess that Shiori pointed out hadn't improved in the slightest.

It's not that he was ashamed of it, nor did he make the common-sense judgment that it's better not to show a dirty appearance to guests, but Hideo very rarely voluntarily started cleaning.

,,It'll be a nuisance during sex."

There were subtle elements that were annoying when he had sex with Shiori too.

Even if he called it cleaning, it wasn't like he was polishing it cleanly or dusting it.

Picking up trash, or just shoving it somewhere. It was more of an act of creating space than cleaning.

After ventilating the place and stretching once, the doorbell rang for the first time in days.

,,Ooh! She's here, she's here."

Hideo giggled as he opened the front door to greet the visitor.

The visitor was a rather tall woman.

Hideo is somewhat short for a Japanese man, but he's not so short that he's dwarfed by women. Kimi, who he fucked just yesterday, was quite tall, but Hideo was still looking down on her.

But the visitor was so tall that Hideo had to look up to see her. She must be over 170cm for sure.

She had rather voluminous long hair that reached her back. She had a sharp face and a beauty mark near her eye.

In terms of impression, she reminded him of Kanzaki Hana, who he fucked a few days ago, but she had an even more mature vibe.

Including the voluptuous femininity that could be seen through the suit she was wearing and her well-shaped legs, she was a woman who embodied the image of a wonderful 'adult woman' perfectly. Her strong and confident impression would make insignificant men feel intimidated.

She greeted Hideo first.

,,It's been a while, Hideo. My schedule hasn't been aligning lately, so I haven't been able to visit as often. How have you been?"

,,Ah..."

Despite being a beauty he's never seen before in his life, she acted as if she naturally knew Hideo.

Needless to say, it's the effect of the Common Sense Alteration Gacha.

Hideo shuddered at the fuckability of the female in front of him and greeted her back.

,,Fuhhihihihi. Hello, Reika-sensei."

,,....."

Reika-sensei's expression twisted at ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠Hideo's greeting. She furrowed her beautiful brow and sent him a cold glare, making even the oblivious Hideo realize that something was wrong.

,,Huh, what's wrong?"

Did I do something wrong? I just said hello?

Most women take Hideo's greetings, and even his existence, as aggressive.

But since they're bound by the relationship of tutor and student, isn't it a bit strange to be displeased by a simple greeting?

,,You really... How many times have I told you not to greet me like that? Did you forget the proper way to greet me just because you haven't seen me for a few weeks?"

The proper way to greet me.

At those words, Hideo immediately felt the unique scent of a common sense alteration story and bowed his head to Reika-sensei with a servile expression.

,,Hi, hihihit. I'm sorry, Reika-sensei. I just forgot. How was I supposed to greet you properly?"

,,You really forgot even the method? Haa... You're really a student who isn't worth the effort."

Reika sighed and looked down on Hideo as if he ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠were pathetic, but as if she hadn't expected much from the start, she didn't drag out her complaints and said to Hideo.

,,When a female visits your house, you should first suck on her lips and put your hand in her vagina to check the condition of both holes, I've definitely told you that, right?"

,,Puhuhuhut!"

Hideo barely managed to suppress the urge to laugh his ass off.

The protagonists who appear in various common sense alteration stories must be owners of superhuman endurance.

They don't even show it when they see such a ridiculous sight.

,,Ah, that's right. I'm sorry. I completely forgot about that. Then, excuse me."

,,Even saying 'excuse me' is impu... eugh..."

Hideo devoured Reika's lips, who seemed to be about to give him a lecture.

The sight of a beautiful and elegant woman's lips being covered and disappearing by a vulgar man's lips is, in a way, a fleeting scene.

,,Mmm, churu-rurup, haaa. Delicious! Reika-sensei's lips are so delicious! Fuhhihihit, nyam nyam..."

Hideo didn't just suck on her lips, but boldly licked her face almost like a dog.

Reika seemed to find the sensation extremely disgusting,

,,Kueugh..."

She groaned and squeezed her eyes shut.

,,Her reaction is a bit different from Shiori's."

Is this the difference between alteration depth 5 and 4?

Hideo brushed aside the thought that he wasn't planning on going deep anyway and shoved his hand into Reika's pants and fondled her vagina.

As expected, Reika's vagina was already ready before Hideo touched it, and it was wet and moist, giving Hideo's hand a perfect sensation to touch.

,,Hihihihit, Sensei's vagina is so wet? It's so sticky."

Hideo deliberately moved his fingers so that the sound of him digging into Reika's vagina could be heard clearly, and said to Reika.

,,D, don't say the obvious. Kueugh... I'm your teacher. It's only natural that I'm always ready for my student's touch... Haa... I, it's only natural, isn't it?"

,,Heuung."

So that's the setting~ That would be interesting too.

Hideo tied Reika's tongue with his own and vigorously poked at Reika's vagina.

,,Mmm, euut! Huu-euung-eut... Uut...!"

Reika's body trembled as she was kissed. Hideo, catching from her reaction that Reika had climaxed, spat out Reika's lips, which he had tasted enough, and withdrew his fingers.

His sticky, wet fingers dripped fluid onto the floor.

The neatly worn suit pants also had a dark stain as if she had peed, creating a sense of depravity.

Hideo's saliva was all over her face, rendering her neat appearance useless.

This was the result of only 5 minutes of meeting Hideo.

Reika, catching her breath roughly and composing herself, ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠praised Hideo with a sharp look as if nothing had happened.

,,Huu. It's a problem that you have a bad memory, but you definitely have talent. Excellent. You can only see that you were born with the technique to make a female vagina climax. The moment your vagina is poked, it immediately becomes aroused, and I almost climaxed at every single finger movement."

,,Hihihit, is that so? Wow, it's the first time I've been praised like this."

Although he was being sincere, Reika whipped Hideo with a displeased face.

,,But don't be conceited. Didn't you forget the obvious way to greet me just a moment ago? You have good skills, but your bad memory is a flaw."

I don't even remember learning such a thing in the first ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠place.

If it was this kind of greeting, I would never have forgotten it.

,,Well, anyway... That was a great greeting. Now, I want to go inside your house, is that okay?"

,,Ah, yes. Please come in."

Hideo stepped aside and made space for Reika to enter.

Reika, who entered Hideo's house with a confident stride despite wetting her crotch, scanned the living room once and said.

,,Your house is still a hopeless mess. The sincerity of your usual behavior comes from your lifestyle. You need to improve yourself more."

,,Ah, yes."

It's something that a mom or teacher would really say.

I thought I cleaned it up quite a bit.

Hideo, who listened to Reika's advice with one ear and let it out with the other, waited for Reika's next words with a pounding heart.

,,...

,,...

And then, mutual silence.

In the awkward atmosphere of the living room, Reika broke the silence first.

,,What are you doing? If you've brought a female into your room, shouldn't you specify a dress code first?"

,,Dress code?"

Reika clutched her head as if she had a headache.

,,You really forgot everything I taught you in the past few weeks. This is your house, right? And I'm a female. Since I, a female, have set foot in your house, you have the right to order me to look the way you want me to. If you like this state, you should at least say that you like how I look now, you idiot."

,,Ah..."

I don't know well, but I could understand it roughly. Not with my head, but with my heart.

,,Eeeh, then... Fuhhihit, should I take off only my suit pants and be in my panties first?"

,,Aah. Do that right away."