At the same time as I saw a red dragon with a silly expression, a heat wave struck us.
On the other side of the red dragon, the red boiling sea spreads.
That must be the molten rock, the lava that we were talking about.
Perhaps the lava heat is coming to us in the wind.
The red dragon opens its mouth.
"Ya, you broke it!? Thousands of years of lethal force left to break through this wall!? Lord, what have you done!?
The same voice echoes from behind. He is a double, and this red dragon in front of him must be the king of the earth.
But I didn't do anything special....
No, this wall that I just broke is not just a rock wall. Looking at the auto-collected items from the inventory, it can be seen that they have been recovered as sealing stones.
According to the Ore Book, it was a sealed stone that could never be broken except by [Cave King].
I see, the Underground King cannot be destroyed because he does not have the [Cave King] crest.
I'll show the Underground King the picket for now.
"I opened it with this."
"Yeah, what's that?
"It's a mining tool called Pickel."
"Mining...?
Probably a tool for breaking rocks.
"Boo, isn't that a weapon?
"Oh, I don't usually use it in battle."
Normally. However, for me, it is also a weapon that has fought Golem opponents with this.
So nothing special. No, it's made of Mithrill.
"That's it... who are you?
"Whatever they say. He's a lord on this earth."
"I'm not listening to that title! What do you hear about your crest!?
The Underground King looked at the back of my right hand and raised his voice.
"My coat of arms? My crest is [Cave King]...."
"Oh, the Cave King!?
The Underground King immediately jumped into the lava and melted into the [Cave King].
The flaming dragon behind him also disappeared.
The lava itself shows a magical reaction. The King of the Underground is this lava?
"What happened suddenly?
When I ask, the lava still opens its mouth.
"You're here to kill the rest of us!? The rest named the King of the Underworld!
"Wait, wait! How did that happen!? I don't feel that way. It's just that they're trapped here, so I'm just trying to figure it out!
When I say it, the lava trembles. Is the Underground King afraid?
"Oh, really? Aren't you angry?
"Does my face look angry? I mean, why should I be angry?"
"Because the rest of us named ourselves King of the Underworld."
"The [Cave King] is angry because he invaded my territory. No, I'm not angry, and the underground and the cave mean a little different, right?
"Oh, is that okay with you? Hmm. Much different from the reputation I heard of [Cave King]...."
"[Cave King] 's reputation?
I don't think this guy, who's been locked up for thousands of years, knows my reputation as a fifteen-year-old.
And the king of the earth said as he had perceived.
"Hmm? Hello, Lord, did you replace [Cave King]?
"I don't know, but I've only lived fifteen years. I don't think it's like the Cave King you know."
"Really, I see... fufufu, hahaha!!
The Underground King waves the lava with his laughter. And gradually, he turned into a giant flame dragon.
"What a wretch! Not only will you be unsealed, but you will also have the opportunity to make this [Cave King] your servant!
You think this guy's going against me...?
Then....
I quickly chose the seal stone from the inventory and buried the open wall.
Then a little while later I heard the voice of the king of the earth.
"Huh? The wall is back!? Hey, hey!? Huh?"
I turn my back on the wall and say to Borción.
"Hey, let's go home! Borción, you're safe here now, right?
"Ha, yes... no, I didn't expect Heel-sama to have this kind of help. Besides, I didn't think the words of the Underground King were a threat."
"Well, if they showed me that flaming dragon, I'd think anyone would be a jerk. Ciel, can we get the controls back up and running?
Sierra shook her body vertically.
"You were wondering about the place just now. All right, let's dig!
That's how I tried to leave here with everyone.
Then the Dragon of Fire... the King of the Underground appears before us again.
The Underground King cleanly rounded himself up and knelt before us.
"Oh, I'm sorry!! I'm sorry for being so cocky! Please, let me out!!
The King of the Underground sues with tears.
"Sorry, they tried to pull a bow on us once. I don't know what kind of danger there is. I can't do that."
"I'll do anything! Please! I will be a faithful servant of [Cave King]!
The cry of the Underground King echoes. Then a voice resounded to my head.
There are monsters that can be tamed. Do you want to tame it?
Apparently, we can tame the Underground King.
I thought you used to call me the Demon King of Fire Prison... or no pride?
A demon king is a word used in the myth of the kingdom to refer to the leader of a monster. The mythical Demon King pushed humans to the brink of extinction for a while.
If a demon king had been trapped for thousands of years, he could have been the demon king of his time.
"Okay, so...?
"I don't want it anymore! I don't like it anymore! I can't be trapped in a place like this!
"I see... Speaking of which, what's your name?
"Elt! Elt the Demon King of Fire!
"Elt... okay. If I can tame you, you can let me out."
I was going to tame Elt.