----Isao Koki Viewpoint...

What do you mean?

　The captain stares at me with a demonic look on his face. I feel even more frightened because of the mechanization of my right eye, but that's not what I'm looking for right now. Now, how do I explain it........ You wouldn't believe me if I told you that I have memories of my past life, and most of what I'm thinking about now is speculation.
　But considering the size of this new world and all that, I'm probably right. Well, for now, let's talk to the Captain and sort it out.

'Captain, did you know that Germany had a large submarine force in place during World War II?

I know. But the war ended so soon that most of it was never used. What's that got to do with it?

Germany tried to establish a base for its submarine force on the Antarctic continent. But it got out to the Allied Forces during the early stages of the war, and the United States became the main force behind the planned invasion of the submarine base. It was called Operation High Jump.

　The Captain took a sip of water from his bottle and nodded, urging me to continue the conversation.

'But as the Captain said earlier, the war itself ended prematurely, so this operation never took place. It's also rumored that the submarine base was never built. But yet, after the war, the United States sent troops...

　In a world without the Cold War, there would have been no need for cold-weather training in the Antarctic, unlike the world I was in. Even if they had to do it for some reason, there was no need to go to Antarctica to pay for it.

Are you saying they seized the base?

'I don't know about that. Either they seized it, or they took over the construction that was in progress.... Either way, I think the base is there. And I'm convinced that's where the New World is based.

How can you say that?

"Do you think there are many places that my mother and Noah and my father's UN couldn't find, even with all their resources, that they couldn't find?　We need a place that can hold at least as many people as Noah, an underground facility deep enough to be undetectable by reconnaissance satellites, and a place that can accommodate a submarine strike force, a specialty of the New World...

So the United States is part of the New World?

I don't know, but I think it's pretty high up in the trenches. The United States is not the only country to have an observation base there, so it's hard to know if the United States is the only traitor. At the very least, if we could clarify the purpose of the new world, we might have a better idea.

　I don't know what this new world is all about. If you want to kill me, you're going to have to take a shot at me from long range. Even if Alice and the others are the objective, they'll kidnap you halfway and make you rescue them. Even now, they're still half-heartedly attacking me with half-hearted forces.
　I can't do anything about it.......maybe this isn't a problem my brain can handle in the first place. I'm starting to feel like I should have gotten up the nerve and left it to my mother. I'm not sure if it's because I'm suddenly exhausted from the past, but I felt dizzy and sat down on a nearby pipe chair and the captain asked me while lighting a cigar.

You said 'the United States of this world' in the previous question. What did you mean by that?

　I made a mistake..., I haven't slept for two days and I don't know what I'm doing now. Well, since we're surrounded by the new world, including the United States military, it's hopelessly impossible to find a way out of this situation, so there's no problem in telling people about my amazing life for the last time.

"Captain, have you ever seen Dr. Sandra's paper?

Hm?　You mean that 'soul reincarnation theory' or some other eyebrow-raising thing?

'Yes, it is. Eyebrow-raising or not, that theory is real. I can't prove it, but I have proof.

　The Captain looks at me quizzically. But eventually his expression fades into astonishment and the cigar in his hand drops to the ground with a plop. It seems that he noticed it.

"I..... No, I'm not going to pretend to be something I'm not in front of my companion Captain who is fighting with me anymore. I, Arakawa Koki, am a 'reincarnation' from a different world than this world, in other words, a different world.

　The Captain, who had frozen for a few seconds at my words, suddenly started laughing loudly. I still couldn't believe it, could I?　I told the truth, but with the Captain's appearance, I said, 'Are you kidding me?' I'm confident I'd pee my pants if I was stuffed with it while being shouted at.

'Kukkuk, hahahaha!　I see, I see. I see why they call you a monster. You've created the same theory as Sandra in another world, and you've implemented it yourself. And you were born to Miki Arakawa, the most brilliant scientist in this world. You were a genius at best, but if you learned a completely different system of science from another genius in this world, you'd be a monster.

No, no, Captain...

'That's fine, you don't have to say any more. From the look on your face, I'm guessing it was something you wanted to keep hidden, right?　And that's a secret I haven't even told my parents. I promise you, on my honor, I will not tell anyone about this.

　─ ─ ─ What should I do, the captain has misunderstood something by himself and has been convinced while nodding his head with an unhmmm. If I said 'No, I was or rather, I'm still an ordinary person' after all this time, that would be shouted at, but I feel like it's better to tell the truth.
　As I was desperately thinking about what to do inside, I thought I heard a clatter. I looked at the Captain and saw him disappear from his smile and take his gun from his holster and stare at the vents in the tracks.

''Enemy...?''

I don't know, stay back.

I moved to hide behind the jittery Captain's back and looked over my shoulder at the vents and heard a voice from inside.

'I'm coming down now, please don't shoot.

　I heard a terrible English accent in Russian. But this voice sounded familiar. With a thud, a Boston bag was thrown down to the ground first, followed by a woman who was quite dirty from coming through an old vent. And when I saw the woman's face, I yelled out, "Claire-san!

'Miss Claire?

'Yes, that's right. It's a good thing that you're a good friend of mine. Because of you, I've been swimming and exploring caves. Please let me go home quickly and take a shower.

　Claire-san, whom I hadn't seen in two days, appeared in front of me wearing Noah's battle dress, which was different from her usual suit, with a smile on her face like usual──.