Key

A helicopter arrived on an island called Jeju.

As soon as the helicopter landed, two passengers came out of it.

Both of them are young women who have a beauty that can make any young man never forget their faces.

These young women are known as Nakiri Alice and Kanakura Yui.

Two of the four girls who give Ishigami his title <Harem Protagonist>.

They land on private land on this island that is far from a near civilization.

However, going there is not their priority.

The two girls immediately enter the car and start to move.

Several minutes later, they arrived at their destination.

"This is the cave, right?"

"Yeah, this is it."

Suddenly, Yui looked at her back and saw a young-looking man who wore a traditional Chinese dress.

"Survey the area."

"Yes, Don."

The guy suddenly disappeared as he teleported.

But in truth, he is so fast that almost no one can see his movement.

As soon as the man disappeared, many shadows were revealed, jumping from one tree to another.

Unfortunately, if a normal person sees this, they might think that they are high since no one can see them with the naked eye.

"Let's go."

Yui said.

"Nnn"

Alice nodded in response.

They enter the cave.

With their flashlight, they illuminate this dark and cold cave.

They wear jackets so they can't feel the cold much.

"Yui-nee, did you have that thing?"

"Yeah, it took some time to dig but with this, we can avoid all disasters before they happened."

"Awesome, as expected of our big sister."

Yui just smiled at her praise.

As they continued to walk, they got bored so they continued their conversation.

"So how is it? Is it still the same?"

Yui has a teasing expression on her face.

"Well… no, his thing below has much more energy so I passed out many times. I think I need some help, Yui-nee."

"It's very tempting but we still have a lot of work to do. I know you're minding us since you can be with him while we are doing the work. Don't worry, It will take a while but our preparations are almost finished so we can be together with him soon."

"I see. Then if that's what Yui-nee said, I would listen."

Yui pats Alice's head.

"Let's end our conversation now since we arrived."

Currently, they are in the middle of the intersection of the tunnel cave.

Four tunnel caves are here including the tunnel that they came from.

From her pocket, Yui takes out an old-fashioned blue key that looks like something can be used to lock an antique chest or wardrobe.

She began to wave this key like she was finding something.

Several minutes later, the blue key emits a blue aura on one side of this intersection.

"Alice, here."

While Yui is waving the blue key as she walks around, Alice is contacting someone on her phone.

Unusual to the modern smartphone, she is using a flip phone with some weird signs on its back.

"I'm gonna drop it now."

*tut

Then she immediately went beside her.

"Do you want me to do? or you would do—"

"Just do it. I will leave everything to you because I trusted you and not because I don't want to do it."

"But that's not— sigh… anyway, well… I'm gonna do it."

Yui closes her eyes and focuses her mind.

Her breath became heavier for every second that passed.

The key's aura shines so bright that covers the whole area in full white for a second.

After the light dissipated, a keyhole suddenly appeared.

Yui put the key in the keyhole.

For some reason, when she does that, the blue aura of the key looks like it has been absorbed by the keyhole.

Suddenly, a blue screen appeared in front of her.

…

[CODEX KEY CONFIRM]

[CONNECTING…]

[CONNECTED.]

[A GATE HAS BEEN CONNECTED TO THE LOST ISLAND]

…

"Done!"

Yui said as she collapsed.

"Yui-nee!"

Alice immediately catches her and helps her to sit and lean to the wall.

"Well done."

Alice said.

"Thanks."

Yui's reply.

"Don't worry Yui-nee, I can protect you so you can rest here for a bit."

"Since you're that confident then I'm gonna accept your goodwill."

Yui started to close her eyes and take a short nap.