The dungeon I stepped out of is said to be the ruins of Lugar.
　Not yet stepped on, the receptionist explained that the search is currently being conducted to the fifteenth floor underground.
　The entrance was covered with a large stone, and the inside was prepared with stone pavement. Cain floats the "light ball" and proceeds to enter.
　I used the "search" tool, but I felt as if I was being interrupted by something, and I could only sense the magic power a few dozen meters away.

　I'm not sure what it is. Well, let's take it easy. ......

　After five minutes, there was a fork in the road, and Cain relied on the map Letia had given him to get to the stairs that led down. Even the note on the map said that the first floor in particular was free of demons.
　In less than thirty minutes, I find the stairs to go down.
　There were no demons on the first floor, and we didn't meet any adventurers.
　From the first basement floor, unlike the cobblestone ruins, a passage with bare earth and rocks spread out.
　The path of about five meters in width stretched out, and Cain used his search (search) to feel a little ahead as he went along.
　I'm going to be the first one to see a demon's reaction a little further on, as I proceeded along the forked road, relying on the map.

'This is my first demon. ...... I wonder what I'm going to find.'

　As he proceeded cautiously, three goblins emerged. They still hadn't noticed Cain and were sitting in a circle around the end of the aisle.

'Goblins, ...... let's get rid of them quickly.

　Cain fires a vacuum bullet (air bullet) to take out one after another.

"We're no match for them on this floor. ...... Do you want to go all the way through?

　Leaving the goblin as a corpse, Cain moves on. The fact that it was explained to him that the carcasses of demons would be absorbed into the dungeon and created as new demons again, he left them there.
　Moreover, the goblin's magic stone is only worth a copper coin, and considering the hassle, it's more profitable to move on.
　Cain used his physical enhancements (boosts) to run through the dungeon. Sometimes he overtakes demons, sometimes he overtakes adventurers. As Cain runs through the corridors of several meters at speeds of several tens of kilometres, he reacts but is gone before he can point his sword at them.
　Every time we went down to the lower floors, more adventurers were added, but once we passed the eighth underground floor, we didn't see any adventurers.
　And when I went down to the tenth floor, there was a large door in front of me and adventurers were resting next to it.
　According to the information Letia had given me beforehand, there was a gatekeeper on the tenth floor, and by defeating him, I could go down to the lower floor.
　In front of the closed door, the adventurers were checking their weapons, and some were laying down to rest.
　When the adventurers noticed Cain, their eyes widened in surprise at the presence of a child alone. Then a woman in robes came up to Cain and called out to him.

'Are you here alone in this place?　It's not safe to go back now. It's no use for a newbie to come to this place. It's the gatekeeper's room up ahead, and there's a demon that a party of C-ranked people can finally get together to defeat.

　The woman in her twenties, who is probably a sorceress, urges Cain to use his attention to return, but he has no further intention of returning.

''Thank you for the advice. But it's not a problem, it's fine. And I'm pretty good at it.

　Cain flexed his still slender arms, showing his power hump. The muscles didn't get that much of a boost, though.
　Adventurers were basically in a world of self-responsibility. But I guess the desire to protect him arose towards the still young Cain.

'Aili!　Don't give a d*mn about those kids, gather over here, the door should be open by now.

　A swordsman man, who seemed to be the leader of the party, approached the sorceress woman.

'Yeah ....... Really don't take it too hard.

　With a single word, the female sorceress returned to the party circle.
　Cain decided to wait his turn at a little distance.
　After about ten minutes, the closed door suddenly began to open. It opened automatically, not by anyone.
　Then the adventurers who had been preparing for it entered with a breathless, "It's your turn! The female sorcerer also dived through the door with a sideways glance at Cain.

'I wonder how long it'll take to wait your turn .......

　Cain sat in front of the door, which was empty, and waited for his next turn.
　And after about thirty minutes, the door was opened again.

'Let's see what kind of demons come out of it: ......'

　Cain scowls and dives through the open door.
　As Cain entered, the door naturally closed.
　Inside was a large square, with a magic square painted in the center of it.
　Next, the magic square glowed and a five-meter-long demon appeared from inside.
　Its muscles couldn't be more raised, and it had a face like an ox, with two horns growing out of it.
　It was a minotaur with a large club and its entire body was completely black.
　And when the minotaur let out a yell, the yell intimidated Cain with such volume that the ground shook.
　But Cain didn't seem bothered by it and held up his sword.

'A minotaur or ....... Was it this big?　And I don't know if it was this color ....... It's like a different color from the demon forest...... well, it's a dungeon, so it's different from normal demons.

　Cain thought casually, his sword at the ready, letting the magic flow through him. Then he packed up at once.
　No matter how much he is a gatekeeper, there is no one in this world who can match Cain's status.
　With a single swing, a headless minotaur was created.
　Since the Minotaur is a demon that belongs to the B rank, it can be taken back by the Adventurer's Guild. Early on, Cain put the corpse away in the item box.
　From the depths of the square where the minotaur had disappeared, there was the sound of something moving, and an empty rock wall opened up to reveal a path.

'Is this how ...... we're going to proceed?'

　As Cain walked through the square and into the passageway, he saw the adventurers who had entered earlier.
　None of them were unharmed, they were all injured, and a sorcerer, Aili, a sorcerer in stained form, was just wrapping bandages around the adventurers.
　Cain saw the figure and ran over to him.

'Are you alright!

　The adventurers look up at the sight of Cain rushing up to them with a pained expression on their faces.

''You were ...... safe!

　Aili, who was bandaged up, exclaimed in surprise.

'Yes, you said it would give you a bit of an edge. But still, this is ......

　The other four of us sat down without power, our armor discolored as if it were soaked with blood.

The first thing that comes to mind is the fact that it's a C-ranked us, and the B-ranked minotaur was tough. We managed to defeat it, but my magic power is also low, and if I use any more of it, I'll lose consciousness, so I'll just recover at the very least .......

　An apologetic-looking Aili looked over at his friends.

''I can use recovery magic too. I still have enough magic power to recover.''

There's no way you can get anything back from a place like ...... that can be recovered in a place like this .......

　With an apologetic-looking Aili at his side, Cain cast a recovery spell.

'Area High Heels.'

　As Cain cast a recovery spell, the adventurers sitting down, including Aili, were enveloped in light.
　When the light disappeared and was gone, no one was already injured.

''What is this ......?''

　The adventurers were so shocked and surprised. They touched themselves and squealed with joy that their injuries had healed.
　And one of them was still frozen.

'Such a ......'

　Aili was so shocked that she couldn't even speak.
　Aili stayed next to her and listened. Cain's magic.

"Area High Heels". And with no chanting.

　I'm not going to be able to get my hands on them. I'm not sure I'm going to be able to say that I'm not going to be able to do it. Even in the church, the only people who can use that magic are the priest class.
　It's a good thing that you're not yet an adult and you can easily cast such advanced magic on a boy who hasn't even grown up yet. It was only because he was able to use recovery magic that he could understand how amazing it was.

''I believe your injuries have been healed, but the blood you shed won't return. If you can, keep it like this .......

　All of those sitting there nodded at Cain's words.

'Boy, you've been good to me. What's your name?　We're Destra, the leader in the C-ranked party, Silver Wolf Fang.

My name is Cain. Feel free to call me Cain!

　Cain's cheeks relaxed as he answered with a smile, and Destra held out his hand. Cain shook his large hand with both of them.
　Even though the adventurers had cast a recovery spell, they were going to take a short break from losing blood and then come up to the ground.

'I can't repay you for anything right now. I will definitely repay you when I return to the city. I'll see you later. Proceed with caution.

Thank you so much, Mr. Cain. I couldn't recover on my own. But the magic you used earlier was .......

　Aili, who had been frozen, asked Cain in horror.
　Cain smiled and held up his index finger to his mouth.

'It's a secret. However, I'm good at magic. So long!''

　Smiling at the resting adventurers, Cain greeted them with a smile and headed for the stairs further down.