Wait, Fuyu-dono. This is not something you want to...
I know it's hard to believe. But it's true.

　As I looked at the stunned delegates from around the world, I assured them.
　The monitor in the conference room showed a world that was the exact opposite of this one, as if reflected in a mirror.
　In addition to the countries of the World Alliance, this time we had Pam as a representative from the Great Tree Sea tribes and Relisha-san, the guild master from the Adventurer's Guild, join us.
　This meant that most of the twenty countries in this world today had participated in this conference. Well, the people of the Tree Sea are not a country, and I didn't include Sandra, Euron and other confused areas.
　The countries participating in the conference were.

The Kingdom of Belfast　
Regulus Empire
Leafreth Kingdom
Kingdom of Misguided
Ramish nation
Rhodomere Federation
The Kingdom of the Knights of Lestia
The Kingdom of Linier
Yisheng, the Godland
Demon Kingdom Xenoas
Paloof Kingdom
Felsen Magic Kingdom
The Kingdom of Elfrau
Lyle Kingdom
Kingdom of Hannock
The Kingdom of Egret
The Kingdom of Parellius
Duchy of Brunhild

　Representatives of all nations are gathered here to talk about "the existence of the underworld" and the "fusion of both worlds" that will happen sooner or later.
　That's where I presented the "existence of the underworld" and the "fusion of the two worlds" that will eventually occur.
　To be honest, you can't blame me for being skeptical. But I'm sure everyone was dimly aware of the existence of another world, a world different from this one. Due to the existence of an invader called Frazeez, who came from another world.

'I don't think this will cause a natural catastrophe and destroy the world. I've already taken steps to prevent that from happening.
What happens when that ... other world is connected to this one?

　The Queen of Elfrau raises her hand in a small way and asks a question.

'It would seem to lead to a new continent being discovered across the ocean. It's not like this continent is going to be able to do anything about it.'

　They don't "overlap"; they are "connected. It's only one world across the ocean, and the land doesn't merge into one. But it seems to me that since the "seafloor" overlaps somewhat, it's possible that part of it could rise up and form a small land mass.

''Two worlds merged into one........ Fuyao-dono, what kind of people are the inhabitants of the other world?
'I've only been to a few countries myself, so I can't say for sure, but basically it's no different to the people here. It's just that magic isn't as well developed over there. It's not that it's not there, but it's not needed.
'Isn't there a need for magic?　What do you mean?

　The king of Felsen, a magical powerhouse, interjects. That's a matter of concern for your country, right?

"It's not so much magic as it is magical engineering. The magic vehicle I made the other day, the "Aether Vehicle", is the same kind of thing that is already in use in the other world. Well, it's expensive over there too.
A world more advanced than ours?
''Hmm, it's hard to say that in general.

　Then I told the kings all I knew. That the worlds have already begun to merge and there is no way to stop it.
　That even if the worlds were to become one, the countries would not overlap because of the seas between them.
　That there is a possibility that many mutant species will emerge in the future, etc.

''I don't understand. Anyway, it won't affect the Great Sea of Trees in any way, right?
Well, except for the appearance of mutants, yes.
''Then it doesn't matter. Of course, if Fuyu Yoru is in trouble, the whole tribe will always be there to help. Feel free to call me.

　Pam leans back in her chair with a scowl. The tribes of the Great Tree Sea don't care much about these things. To them, the Great Sea of Trees is the world and everything.

Central-dono says he has been to the other world. What kind of world was it, if you don't mind me asking?

　Shirahime, the Emperor of Yishen, asked such a question to Queen Parellius, Central-san, who was sitting next to her.

''I was only inside the castle in the country called Primula Kingdom, so not so much........ But it didn't seem too different from this one. And the food and drinks were normal too.

　In case you're wondering, Millie, the escort I went with, had a poisonous taste. I don't think there's much of a problem with the food. There were some fruits and other things that were the same as in the surface world 《here》.

''Fuyu-dono, what I'm most concerned about is whether the countries of that world will ever attack our country. That, Golem?　or some other weapon.

　When King Linier opened his mouth to say so, some of the kings also gave a small nod. ''Right, I'm curious.

''I don't think there's anything like a direct invasion though, since we're across the sea. At that time, we won't be silent either. That's what the alliance is for.

　Hopefully, we can get the countries over there to join the alliance and get along with each other. I did not receive any opposition from the other countries to my proposal, per se. Then, it will depend on how the other side comes out of the underworld.
　If they say they don't want to get involved, I'll do that, and if they try to fight with me, I'll just have to get rid of the sparks. I want to get along with them, but I don't want to get along with them until they hit me one way or the other.

''Well, it's Fuyu-dono.
'I just hope the leaders of the other country aren't stupid.
How many countries do you think will be off the map over there?
It's a tough one. It only took two countries for this one, but...

　The kings of Belfast, Regulus, Mismid, and Leafy's are pulling out of their mouths in a self-serving manner. Wait a minute. I'm not the one who destroyed Euron, and you guys almost burned me when Sandra was killed.
　I'm not so sure about Isengard though, right now.
　I think it's not a good idea to make a judgment based on what people tell you, so I'd like to see the Mage King at least once. He might be an old man who's a bit of an old man, and... no, I don't think that old man should be allowed to have power...
　It's only the top people who are crazy, the rest of us might be decent. But if the whole country is infested with strange ideas like Euron and Sandra, it's a problem. But if they were sane, they would stop that crazy old man........

The two worlds are not going to become one right now, so don't worry. Even if they do, I don't think there will be a sudden and significant change. Also, I don't think it's best to let the people know about this yet...
'Yes. It would only cause unnecessary confusion. That said, won't you tell Nokia and Horne about this?

　The governor of all the Rhodomea states asks me.
　Nah, that's another thing I'm worried about.
　The Nokia Kingdom and the Horned Kingdom. They are the countries that have yet to join the World Alliance in the surface world 《here》.
　I've heard that our neighboring country Felsen has been talking to the Horn Kingdom several times, but it seems that this country is in the middle of a power struggle.
　It seems that this country is in the middle of a power struggle, and it seems that the head of the country is currently absent. I heard that the previous king passed away before he could choose his successor, so they're having a dispute about the succession. So it seems that they can't decide on the policy of the country.
　The Nokia Kingdom also seems to have been approached by Xenoas, but they're kind of avoiding it.
　The Nokia Kingdom was founded by people who rebelled against Euron's oppressive government, and they've been confined to the mountainous region of Tianji, and are in a state of semi-isolation. To be honest, Xenoas has been a similar country until now, so it doesn't seem to have that deep of a relationship with them. I don't know what's going on.

As it stands, there's nothing we can do about it if we tell them.
Well, sure. Even we don't know what we're supposed to do.

　The governor of all the provinces replied with a bitter smile. Well, if the other side doesn't want to get involved, then I guess we can keep our non-interference with each other.

''Doesn't the other world have an organization like the Adventurer's Guild?

　This time, a question from Relisha-san, who seems to be the guild master, flew in. Do you plan to develop adventurer's guilds in the underworld as well, by any chance?

'There is no such organization in the country I've been to. Of course there are monsters and demons, but it seems that the national Golem guild is the one that basically deals with them. In the rural areas, it seems that the entire village buys golems and sends them to guard the area. Of course, there are golem users who make a living by defeating magical beasts.
Hmmm... yeah.

　Relisha-san began to think about something. That thing must have a lot of calculations flying around in her head. She's an elf, and I think she can take her time to acclimate the Adventurer's Guild to the underworld.
　I'm willing to help her with that. I still have the title of adventurer.
　I said earlier that I was buying golems to guard the village, but that's only for villages with a certain amount of money, and that's not the case for small villages in the middle of nowhere.
　The village they're using for security won't be of much use if the golems aren't suitable for fighting, and even if they were of the fighting type, two golems wouldn't be able to deal with a crowd of goblins, for example.
　Although it can be said this, in terms of pure combat power, I think the people of the surface world are superior. I think the underworld is too accustomed to having the golems fight, so I think the individual's individual skills are not very high.

I'm sure you'll be able to find out more about this. Can't we?
'There's nothing I can't go to, but it's a completely different world, you know?　Even the prestige of the country doesn't come through, and when you think of the danger and all that...
Fuyu-dono can't handle half-hearted risks, can he?
Well that's just fine.

　The Beast King of Mismid grins. You've been trusted a lot. It's true that as long as you always deploy [Prison], as long as you don't get attacked by an evil god, you'll be safe. But even so, there are many things we have to be careful about, like food poisoning and dangerous gas.
　At any rate, I've made it convenient for you to be invited to the Triharan God's Empire or the Kingdom of Primula before the next one. We can't do it all at once, but three or four at a time should be fine. If you include the guards, though, it will probably be more.
　After that, as usual, we went into free time where each country talked to each other while having dinner and playing games. Sometimes the two countries discussing with each other are asked to solve their problems, and sometimes I ask them to do so.
　It would be nice if we could keep in touch with the kings of the underworld in this way.
　It's just Primula and Triharan for now, but.......I didn't know you had connections with the Panacheas Kingdom. I've made the acquaintance of a strange prince with a blue crown. Prince Bombastic Bastard.
　Maybe you should ask him to introduce you to the King of Panachez.
　I hope his parents are decent. Hmmm.