“I guess I should start with the gender ratio. Hmm, let’s see… world gender ratio.”

I typed it into the search bar. The results appeared immediately.

Among them, a headline stood out clearly:

Japan’s gender ratio now 1:100!? What will happen from here!?

It seemed to be a news summary article.

“Japan’s gender ratio is 1:100… one hundred!? That’s way too much. My head hurts…”

I thought maybe around 1:20 at worst, but the reality was far more extreme than I imagined.

This was the kind of difference that made me want to mentally check out.

As I continued reading, the article also explained social effects, and how the ratio became so skewed.

“The reason the ratio shifted… hmm, looks like it was due to a virus in the 20th century.”

The article said:

“A virus that spread in the early 20th century. At the time, infection caused no noticeable symptoms. However, after some years, the birth rate began to sharply decline.”

“The virus affected genes and had the ability to erase the Y chromosome, which only exists in normal male individuals. As generations passed, men decreased and women increased. A vaccine was eventually developed and the virus itself was eradicated, but the lost chromosomes could not return…”

So the article said.

“So it was caused by a virus.”

This didn’t exist in my original world.

Also, whether this was natural or artificial… that point alone would start arguments.

When I looked further, I saw exactly that—discussions accusing certain countries, and others arguing from scientific reasoning.

“Things like this happen no matter which world it is, huh…”

As I continued scrolling, one academic paper caught my eye.

It was titled—The Skewed Gender Ratio and Its Social Impact.

It mentioned future social structure, family models, changes in labor markets, and so on.

“Hmm… wait, polygamy!?”

I accidentally shouted.

I glanced behind me instinctively.

It’s not like I was doing anything wrong, but… I just felt uneasy.

“Due to the skewed gender ratio, marriage systems have been reevaluated. Multiple women marrying one man is becoming more common. Meanwhile, with women entering the workforce rapidly…”

But from what I’ve heard before, men either withdrew from society or became either fearful or arrogant toward women.

In this situation, even if polygamy becomes common, how would that even work?

No—maybe it’s more like, since meeting a man is almost impossible, just being able to marry one at all is seen as a good outcome.

Also, all professional sports were now women-only.

On the other hand, magazines and modeling were overwhelmingly dominated by men.

“Things really have changed a lot.”

Well, I think I understand enough for now. If I think too deeply, it’ll only get more confusing.

Alright, let’s look at something lighter.

…I wonder how MiiTube, the video streaming site, is doing.

I searched it, since I used to watch it often.

The thumbnails only showed women. But the genres were the same as before—gaming, chatting, live streaming, etc.

It seems the gender imbalance didn’t change how content itself works.

Well, except for the fact that no men are appearing.

Also…women are just casually showing their chests in some of these videos.

In beach videos, some were even topless. Though some wore bikinis.

So that changed too.

“Oh right, what about Vtubers?”

I searched the name of a male Vtuber I knew.

Only related tags came up. No channel.

“Seriously?”

However, there was one tag that stood out among the top-viewed channels.

“Dansou Vtuber” (women with male Vtuber avatar).

Curious, I opened a few.

They streamed using male avatars, voices lowered into calm tones. Some clearly used voice changers.

“I see, so this is why they’re popular.”

The comments were full of praise.

Since men are rare, these Dansou Vtubers probably act as a substitute.

While scrolling, I accidentally tapped on a livestream.

“Hello everyone! Today we’re going to—”

I decided to watch for a bit.

Then I felt a gaze behind me.

“Hey, Amiya-kun. What are you looking at?”

The voice came from behind me. I recognized it—Haruka.

“Uwah! You scared me…”

I had been focused and reacted loudly.

When I turned around, Haruka was staring at my screen with obvious interest… or rather, jealousy.

She glanced between me and the screen.

When she realized the streamer was female, the light vanished from her clear blue eyes.

H-hey, don’t remove your eye highlights.

Are you seriously jealous of a livestream?

I’m just watching!

“Don’t scare me like that. It’s MiiTube. Vtubers. I was checking current trends.”

“Oh, I see. I thought you were getting really into it.”

She relaxed back to normal.

Haruka might actually have a slight yandere tendency…

“No, I’m just researching. Since men are rare, I wondered if that affects things like this.”

“Of course. With no chances to meet men, people look for substitutes. But me? I have you, Amiya-kun, so I don’t need to watch them.”

“Ahaha…”

“What is it, do you hate me?”

“No, not at all.”

“Then it’s fine!”

Her light teasing made me a bit embarrassed but also happy.

Someone warm right here is better than anything on a screen.

“Ah.”

Haruka suddenly wrapped an arm around my neck smoothly.

Is that really okay for a bodyguard…?

But I didn’t resist. I didn’t dislike it.

She moved me onto the sofa and pulled me onto her lap.

Wait, that’s where this is going!?

“Ehehe~”

That expression is not something a bodyguard should be making.

Then she pressed her face to my neck.

And her chest pulled away slightly as she did so.

“Ah… hey wait, don’t sniff me!”

I could clearly hear the breathing behind me.

Just then, the living room door burst open and Hiiragi entered.

“Kokuryuu-san, you left suddenly so I came to check—”

Apparently Haruka came here without telling her.

“-!? What an indecent…!”

Hiiragi turned red and looked away.

“I will assist you at once!”

“Ah, it’s fine.”

“…What?”

She stared at me like I had said something unbelievable.

Like, “What man would say that?”

“Really, it’s fine~”

I waved a hand loosely. I really didn’t mind.

Honestly, it was kind of nice.

Hiiragi looked troubled, but stepped back.

“…Understood. Then I will also stay here.”

“Okay.”

While we talked, Haruka spoke again.

“Hey, Amiya-kun.”

Her tone was lower. Serious.

“Yeah?”

“Don’t abandon me, okay? Let’s stay together forever.”

“Yeah.”

I felt embarrassed, but answered.

But no reply came back.

Then I heard breathing.

She had fallen asleep.

“Honestly… unfit for duty…”

Hiiragi sighed and carried Haruka away.

“Also… if it’s alright… I would like to stay together as well.”

She said that, and left before I could respond.

“Eh.”

Her unexpected words left me frozen.

“Did I… get closer to Hiiragi too…?”

I replayed her words in my mind.

That was basically… a confession, wasn’t it?

Or am I being full of myself?

Ahh, this is confusing.

But asking directly is too embarrassing.

…I’ll calm down for now.

Yeah. I’ll just rest for today.

I lay down on the sofa and let my thoughts fade.