Chapter 1

If I were to talk ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠about Kimoda Hideo, I could sum him up with the phrase "loser in life."

There's no better way to describe his life, given his inherently twisted and repulsive nature.

Innate intelligence: below average. And on top of that, he doesn't know how to put in effort, nor does he have the will to do so.

Innate physical ability: below average. Same as above.

Innate appearance: below average. He's not extremely ugly or grotesque, but he doesn't make any effort to improve it, and he's maintained an unclean and unhealthy lifestyle, which has only made it worse.

Innate personality: below average. He hates making an effort and genuinely enjoys seeing others fall, a kind of pure malignancy in a way.

One might even philosophically question whether such a person has any reason to be born, given how many flaws he has.

If I were to really, really try to find a strength, it might be in his reproductive abilities?

The size of his manhood and his stamina overwhelmingly surpass most people, and his sex drive is so strong it can be compared to a bottomless, inexhaustible well.

If he had been born in a better position at some point in the past, it wouldn't have been entirely impossible for him to leave behind many descendants.

However, born into an utterly ordinary household in modern society, he has no such opportunity.

With nothing to be proud of, a hideous and vulgar personality, and not even rich, he will never have the chance to unleash his innate reproductive abilities.

Truly, a dragon-slaying skill.

Even if you have the skill to slay a dragon, it's obvious that it's useless if there are no dragons in reality.

There's no way such a flawed human being could fit into society somewhere.

He becomes a shut-in as soon as he graduates from high school.

If he hadn't begrudgingly listened to his mom's plea to at least graduate from high school, even that wouldn't have been possible.

His parents seemed to have held onto hope for their son until the very end, but that hope and expectation were rendered meaningless when they died together in a car accident.

The son, on whom his parents had placed their last hopes, said this about their death.

"I'm glad the nagging is gone."

Hideo is definitely missing the qualities that a human being should possess.

Perhaps it was like that from the moment he was born. It can only be said that this is already his destiny. There's no way such a human could exist otherwise.

Hideo's decision to confine himself to the house his parents left him and isolate himself was certainly the right thing to do, both for Hideo himself and for others.

The inheritance his parents left him was modest, but if he lived off that, he could survive until he was about 40, assuming he didn't waste it.

He has no plans after that. But well? Does a person necessarily need plans for tomorrow?

Considering Hideo's own terrible lifestyle, it wouldn't be strange if he suddenly died before he turned 40.

Anyway, by Hideo locking himself in his house, Hideo was able to stop causing unnecessary trouble, which was really fortunate for others.

The harm Hideo spread to the world was limited to stirring up aggro or leaving malicious comments on insignificant internet communities.

No matter how evil his nature, if he lacks motivation and his actions are weak, he can't even properly cause harm.

Hideo thought.

Someday, he would surely waste his life on such useless things and die.

Of course, that doesn't mean he's thinking of changing himself. On the contrary, he just wonders if some kind of unreasonable and absurd cheat ability will come down and suddenly change his life.

If that happened, he would live his life wildly banging pretty-faced, well-bodied bitches, he can't help but indulge in such vulgar fantasies.

Such fantasies are, of course, a freedom.

It's vulgar, but it doesn't negatively affect others. Even a shut-in with an evil nature has the freedom to fantasize.

But... but.

If there is a God in this world in the truest sense, that God is clearly unbelievably evil. Because,

He has granted this vulgar and trash-like human the ability he desires.

//

A story from one day.

An app was suddenly installed on Hideo's phone.

Its name was 'Common Sense Alteration Gacha.'

"Huh? Did I ever download an app like this? I don't remember pre-registering... um... I don't know..."

The number of gacha games installed on Hideo's phone is only 10. More than the hells in Dante's Inferno.

And if you include the games he played for a while and then deleted because they were boring, that number jumps up significantly.

So, it's not strange that a game Hideo doesn't remember has been installed now. If he pre-registered sometime and forgot, it's easy to understand.

But it's hard to just let it go like that because the title is too eye-catching.

Common Sense Alteration Gacha.

Could Hideo, who has devoured all sorts of erotic novels, anime, and doujinshi, so easily forget something with 'common sense alteration,' a genre he particularly likes, right in the title? It feels like it should be somewhere in his memory.

"Hmm. Should I run it for now?"

Hideo put aside his troublesome worries and thoughts and carelessly touched the installed app to run it.

It was a thoughtless act that could potentially harm his phone, but he was far from the concept of thought itself. It's inevitable that he would do this.

Reacting to Hideo's touch, the app ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠spat out a single page of instructions. The instructions were as follows:

※Basic Rules

One. The player can receive a quest through gacha once a day.

Two. The woman who becomes the target of the quest must abide by the rules no matter what.

Three. During the quest, no outsider can interfere with the user's quest under any circumstances, and they accept that the player is carrying out the quest as a matter of course.

Four. The player is exempt from all legal and moral responsibility for the quest process and results, and cannot be retaliated against in any way.

Five. The player is guaranteed unlimited stamina during the quest.

Six. The woman who becomes the target of the quest is aware that she is the target of the quest and is ready to go.

Seven. The user can unlock new features of this game by completing the quest.

Explaining the rules right ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠away as soon as the game starts.

Considering that usually they start with a cool cutscene or put forward an attractive character to slowly apply a prologue or tutorial, it seems dry and stiff.

However, because the rules were very much to Hideo's liking, Hideo didn't find it unsatisfactory. Rather, he was excited about how hot the game would be if it explicitly stated his favorite rules like this.

Hideo touched the screen again. Then the instructions disappeared, and instead, a button-like thing in the shape of an O appeared in the center of the screen, and the phrase [Press to Gacha] floated below it.

Extremely simple.

Hideo, uncharacteristically, had a common-sense worry ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠that a huge amount of money might be charged when he did the gacha, but by the time that worry properly came to mind, his uncommon-sense finger had already touched the O button.

A collection of numerous symbols flashed across the screen at a speed that was difficult to follow with the eyes. The speed peaked after about 30 seconds, then gradually slowed down, and stopped after about a minute.

And just when it seemed like that symbol, whose meaning was unknown, occupied the very center of the screen, the screen soon switched.

[Quest Title]: Let a Perverted Childhood Friend Sleep Over for One Night

[Perversion Depth]: 5

[Quest Rules]

1. Sunaarashi Shiori is Kimoda Hideo's longtime childhood friend.

2. Do not refuse Shiori's request to stay overnight and let her into the house.

3. Clear judgment if Shiori normally leaves Hideo's house around 11 AM.

4. Other detailed settings can be confirmed from Shiori's mouth.

That was the end of it.

"...Huh? What? What's next? Why doesn't the screen move when I touch it?"

Hideo touched the screen with his finger several times. But there was no change.

If the game has started and the rules have come out, shouldn't the play screen come out next? But there was no such thing.

The quest rules come out and then freeze. No matter what you press, there's nothing beyond that. It's possible to exit the app to the home screen, but that's it. It's not particularly lagging, but even if you restart the app, it's just a black screen.

Hideo, who is impatient, held his phone for quite a long time and tried various methods, but in the end, nothing came out.

After struggling, Hideo couldn't stand his annoyance and threw his phone on the bed. The reason he didn't throw it on the floor was because he regretted the game data left on his phone.

"Aish, shit. What kind of fucking scam app is this? I knew it from the moment it was suddenly installed on my phone."

If so, he shouldn't have run it from the beginning.

Hideo turned on his computer to relieve his annoyance after putting away his phone. This is because Hideo's routine was to go to an illegal doujinshi site and masturbate while watching humiliation doujinshi when he was annoyed.

If Hideo had been a more cautious person, he should have felt a chill, or at least a sense of unease, when he saw the newly appeared quest screen in the first place.

He didn't even agree to the terms of providing personal information, so how could his name be written on the quest window as if it were natural?

Hideo's incompetent and weak mind was too far behind and insensitive to even detect such small discomfort.

But it doesn't matter.

Such incompetence, weakness, insensitivity, vulgarity, patheticness, baseness.

All those characteristics that modify a disgusting human being don't matter anymore.

Because Hideo has become a chosen human.

//

"Kkeueut... Fuck, fuck, fuck!!"

With vulgar curses in his mouth, Hideo stained the tissue with his jizz.

A copious amount of semen, which could not be contained in a single tissue, burst out and overflowed from his hand, falling to the floor with a patter.

"Huuu... Ahh, refreshing..."

On the computer screen was a tattered picture of a poor girl whose life had been completely ruined by hypnosis.

Hideo, who had spewed his lust onto a fragment of fantasy for vulgar men, finally felt a little refreshed.

He doesn't even remember what he was annoyed about until just now. Basically, this man is a single-celled organism, so he can't hold onto grudges or anger for long.

"Huu, this artist is really good at expressing how a girl gets wrecked. I should jerk off to another work."

Hideo roughly wiped the semen that had fallen on the floor with a tissue and rummaged through the illegal doujinshi site to find his next wank material.

At that time,

-Ding-dong-

The doorbell rang.

Hideo ignored it. Because he didn't realize it was his own doorbell.

Since his parents died, the number of times someone has visited Hideo's house is very small. He didn't order any delivery anyway, so it must be someone else's doorbell. He thought so.

However, as the doorbell rang repeatedly and struck his ears, Hideo gradually began to get annoyed.

"Ah, who the fuck is it when I'm jerking off..."

At the sound of interrupting the most important moments in his life, Hideo picked up the pants that were lying around and opened the door with a frown.

"Ah, who the fu..."

, and he was about to swear first, but...

Hideo swallowed the curse that was about to come out, along with a sigh, beyond his throat.

Because the person in front of the front door was a woman. A very cute woman at that.

The woman was about a head shorter than Hideo. The hair color visible under the baseball cap was brown. She had a cute and youthful face, but the sexiness coming from the provocative combination of a tank top and denim hot pants was unusual.

He had seen this level of beauty from afar, but this was definitely the first time he had met her face to face, eye to eye.

No matter how reckless and clueless Hideo is, he can't help but be nervous in front of such a cute girl.

"Wh.. wh.."

He was about to say"What's the matter?" He was momentarily flustered and stuttered, but the girl took the lead and greeted Hideo first.

"Long time no see, Hideo oppa. I came to this area for some business, but I have nowhere to go. Please let me stay overnight tonight."