Why Not Make Both Twins 'Girlfriends'?-Chapter 9Volume 3 .1 - Just the Three of Us on a Deserted Island...?

Just the Three of Us on a Deserted Island…?

Basking in the sunlight, a white fishing boat was making its way across the sea.

“It feels great───!”

Hikari, who had just gotten her license, was happily steering the boat.

“Whoa…! Eek!”

“Whoops──”

Chikage lost her balance, but Sakuto quickly caught her.

“Are you okay?”

“Ah… Thank you, Sakuto-kun…”

“Still, I can’t believe you can actually steer this thing, Hikari…”

“Hii-chan is a genius, after all…”

In fact, just yesterday, the man who owned the boat that Hikari had fixed offered to lend it to them.

So, during their break, the three of them went out to sea with Hikari at the helm. Hikari seemed to have a particular destination in mind──

“Hikari, do you really want to go to Aneko Island?”

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“Yeah. I thought it might feel like a private beach over there.”

“A private beach, huh…”

It was finally their break time, but perhaps because it was Saturday, the beach was crowded with people. It was too cramped for the three of them to play.

Considering Chikage’s concern about the surrounding eyes, Hikari had called the man from yesterday.

Aneko Island was uninhabited and owned by the fishing cooperative. The man had kindly made inquiries, arranging not only the borrowing of the boat but also obtaining permission to land on the island.

(Yesterday, we got some squid from him. I’ll have to thank him later.)

As Sakuto thought this, the dock came into view.

“Ah, we’re almost there!”

──There was one concern, though.

It was a trivial matter, but it was about that legend──

“They say it’s just a story, but around here, there’s an old saying, ‘Don’t let the elder sister go to the island, don’t let the younger sister enter the mountain.'”

“Why is that?”

“They say the elder sister will be taken by the sea, and the younger sister will not return from the mountain.”

Sakuto didn’t want to believe the tale he had heard from the old woman, but something felt wrong about Hikari going to Aneko Island.

A sense of unease was growing.

It might just be an overreaction though──

***

Aneko Island had an interesting shape, looking like a perfect triangle from any direction.

Aside from a single man-made dock, the island was surrounded by sandy beaches, and the waves seemed calm.

After landing with their cooler box and luggage, the three decided to walk around the island. It took about twenty minutes to make a full circuit, with the perimeter being roughly one kilometer.

Of course, there was no one else around. Just as Hikari had said, it felt like a private beach.

“Huh? Is that a torii gate over there?”

Hikari pointed to a spot where a vermilion torii gate could be seen between the trees.

It had been slightly visible from the mainland, but it looked more distinct up close.

“Probably, yeah.”

“I wonder what’s enshrined there?”

“…Who knows?”

Sakuto gave a wry smile and dodged the question, though he had a pretty good idea.

According to the legend told by the old woman, a twin sister named Mitsuko had come to this island. The enshrined deity was either the sea god or Mitsuko.

And the mountain god, or perhaps Chikako, would be enshrined at Imoko Mountain──

Sakuto usually doesn’t believe in superstitions, but this story had strangely caught his attention.

“Sakuto-kun, you can see the beach house from here.”

“True.”

The beach house “Karen,” with its white exterior, was clearly visible from the island.

Matori and Yuzuki were probably working hard at this very moment.

Beyond the beach house, Imoko Mountain loomed lush and green. From this vantage point, it formed a beautiful triangle, indeed resembling the image of sisters.

“Shall we go for a swim right away?”

“Sounds good.”

Hikari and Chikage started taking off their clothes and changed into swimsuits… Without saying what, the twin sisters’ destructive power was as formidable as ever.

The three of them did some stretches and then entered the sea. It felt quite pleasant.

“Ei! Ei!”

“Hey, Hii-chan! That’s cold〜!”

“Chikage, I’ll help you.”

“Hey! Two against one is cheating〜!”

They splashed water at each other, swam around, and then relaxed leisurely under a parasol they had set up on the beach.

As they were playing──

“…Hm?”

Sakuto stared at the mountain behind them.

“What’s wrong?”

“Oh, nothing…”

It might have been his imagination──Sakuto thought so, but something was bothering him.

“I get it, you need the bathroom? Actually, I’ve been holding it in for a while too…”

“No, that’s not it… But there isn’t a bathroom around here…”

“Yeah… Chii-chan, could you come with me for a bit?”

“Okay──Where will you go, Sakuto-kun?”

“I’ll check out the mountain for a bit. Let’s meet up later.”

And so, Sakuto left the twin sisters and headed towards the mountain alone.

***

(It should be around this way…)

Sakuto wandered through the thickets.

The reason was that when he had looked back while on the beach earlier, he thought he saw something reflecting light, and then a white object seemed to move swiftly.

He tried to recall the memory.

A series of images flashed through his mind, but their true nature remains unclear.

(Could it be Matori-senpai again? But then again, there’s the beach house…)

If it’s not Matori, then who on earth—

—Rustle!

“Ah!? Whoa!”

Sakuto instinctively stepped back.

Just as he thought something white had burst out of the bushes—

“Meow”

“…Don’t scare me like that…”

What appeared before Sakuto was a white cat, one he recognized.

“…Are you the cat from that kimono shop?”

“Meow”

“Why are you here? Did you swim across?”

“Meow”

The white cat meowed as if to answer, but of course, Sakuto had no idea what it was saying.

(I should have brought Hikari with me…)

If Hikari were here, she might understand cat language(?), and perhaps she could have figured something out.