The Cave King will live a Paradise Life -Becoming the strongest with the mining skill?-

A few days after my father left, I was still mining.

Of course, I have everything I need.

Let's start with Lopez.

According to Elt, Lopez is a special monster who can become a demon king.

The Demon King has the ability to bring other monsters closer to his Tame Skill. Not only that, Lopez is slowly growing to handle enormous magic. It seems to be the same as Lopez when Oren resurrected him with the Death Spirit.

With such a monster, Elt wants to make an education worthy of being a Demon King Lopez. Of course, he said he wanted to grow up calmly so that he could get along with everyone on this island.

I also tasked Fall with educating the Fire Dragon, and Lopez decided to ask Elt to do the same.

And then the underground city.

Sil says there are many comfortable houses. Thanks to the slime that was there to take care of it. Water and sewerage systems are still alive and may be helpful when the population grows in the future.

However, there are still many chimeras in the underground cities, and it is not yet a very safe place to sleep. That's why Ariel and Cave Spiders caught them one by one, and I'm going to tame them.

And, of course, I'm mining, too.

On the ground, the former slime of the Empire has been added, and the construction of landfills for architecture and agricultural land expansion has progressed even further. Barris tells me what to do, so I won't talk.

... it's been a while since we've focused on mining.

I'm here around the underground lake where Elt was sealed.

A cave with seven colored sparkling stones that neither Sierra nor the ancient Empires knew.

Over the past few days, I've been digging a path from the underground city to here. Ask Mappa to lay the railroad there.

There were a lot of metallurgical stones so there was no need to dig, but it would be troublesome if something went wrong and you couldn't go back and forth. It's an emergency passage.

Ciel, Taran, Hule, and Fifteen are with me today. Surrounded by Borsion buddies, Dolls are on alert.

In the meantime, Hule glanced at the wall of the cave. There are many rainbow-coloured stones visible.

"I knew I'd never seen a stone before... let's dig it up!

"If you don't hurry, the stone won't escape."

I want to dig fast, too.

But safety comes first.

I'll see if there's any magical reaction around.

"Right, left, left... let me dig for you!

I shook the picket down earlier than the two of you.

"Hey, heel! It's not good."

Foulet and Taran followed me and shook the picket.

Then the walls collapse.

The broken rocks were collected in my inventory one after the other.

Looking at the inventory, there are more stones called Shichigeki.

Is this the identity of the rainbow-coloured stone?

When Hule picks up a shard of the Seven Stones, he asks me.

"It's so beautiful... what a stone!

"Seven stones. According to the atlas, it's just a jewel."

It was just a jewel, and Foulet looked boring.

Well, considering what you've dug up so far, you certainly don't feel mediocre....

But this kind of stone is unknown on the continent. I'm sure it's very valuable.

It might be good for rings or something. Well, if you keep digging, something new might come out again. "

We then dug until evening. Head north.

However, the rocks and seven stones were dug, and nothing new in particular could be dug.

Still, I was satisfied, but I enjoyed it.

Rather, as long as this peaceful day lasts... I went back to earth with that in mind.

"What's for dinner today?"

I murmured as I looked at the tree of the world.

But Hule had a surprising face, looking in the opposite direction to what I was looking at.

"Hey, heel, there."

"What's the matter, Hule? Ha!?"

Immediately after leaving the cave, a huge building was built in front of me.