After defeating the demon king in another world and returning to Japan, a dungeon appeared on the ground. - Chapter 10

By Ant,

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“Earthquake!?”

“It’s huge!!”

The entire school building shook violently.

If it is an earthquake, it is quite a big one.

My classmates screamed and hid under their desks.

I wouldn’t die even if the school building collapsed, so I looked out the window while maintaining my core.

“What…? That is…!?”

The appearance of the schoolyard below is strange.

Something like a protrusion is growing from the middle of the ground.

The projections protruding from the ground stretched further and further into the sky, causing the whole area to wobble and shake like an earthquake.

“…”

When I saw the protrusion growing from the ground, I was astonished.

Not in this sudden and unusual occurrence.

That projection was a familiar structure in the previous world, Arcadia of swords and magic.

no doubt.

That is…

“Dungeon…? Are you kidding…?”

I was so confused.

It’s not a dream, is it?

Why did a dungeon, a crucible of monsters, suddenly appear in the schoolyard…?

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Let me briefly describe what happened since then.

First of all, the projection that suddenly appeared in the schoolyard was definitely part of the dungeon.

Underground, there was a labyrinth of monsters with a hierarchical structure, just like in Arcadia, and many people who stepped into it out of curiosity fell victim.

Dungeons weren’t the only things that appeared on our high school grounds.

All over the country, no, it appeared all over the world at the same time.

Countries were in chaos, whispers of the end of the world, and riots broke out in various places.

However, as more and more information about the dungeon became clear, people’s confusion gradually subsided.

Instead, dungeons came to be seen as a new source of energy, replacing oil and coal.

Ferocious monsters roamed the dungeon, but the magic stones and dungeon ore obtained by defeating them could be substituted for all the resources of the earth.

As soon as the governments of each country realized that dungeons are a treasure trove of resources, they immediately took action and put in place a system for dungeon development.

Strangely enough, it was similar to the system that existed in Arcadia.

In other words, they recruited explorers and created an organization to oversee them.

Even if the world is different, human beings think the same way.

In Arcadia, those who explored dungeons were called adventurers, but in Japan, the name explorer has become established.

Only those who were authorized by the government were allowed to enter the dungeon as explorers.

[T/N Why are korean webtoon cliches here? Also that timeskip caught me off guard…]