Cain proceeded to the eleventh basement floor.
　When he descended the long staircase, he found a forest in front of him.
　The trees are over ten meters high and block the view.

''Why is there a forest here ...... and it's so bright?

　Looking up, the entire ceiling appears to be glowing. Cain used his exploration (search) to understand the situation.
　It was a large space for several kilometers, and in some places he could recognize groups of people who seemed to be adventurers or even demons.
　Cain cautiously stepped forward into the dim forest where the light did not reach.
　While avoiding the adventurers, Cain proceeded through the forest.
　The demon he encountered along the way was a Forest Monkey, a demon that resembled an ape and was classified as a B-ranked demon. The forest monkeys, which have long arms and legs and are less than two meters in length, are often in groups, flying around in tree branches and releasing rock bullets (rock bullets). It's a good thing that you're not the only one who's been in this situation.
　Although the Forest Monkeys themselves are not strong in combat, they are classified as this rank because they are in packs and fly around on top of trees, making it difficult to deal with them with swords.
　For Cain, who was able to recognize the location of the demons with his exploration (search), he was able to deal with them without any problems even if they were hidden in the trees.

'I guess this is as good as it gets: ...... Let's go further.

　Cain proceeded further into the depths while housing the demons that had died out under Cain's magic in the item boxes one after another.
　As he went deeper, there was a sound like vibrations echoing on the ground. Branches snapped off and a four-meter tall gorilla-shaped demon appeared in front of me. The muscles of its chest are emphasized to the point of being ripped off, and its thick limbs are covered with black hair all over its body.
　It was a Forest Kong that was classified as a Demon Rank A.
　Forest Kong stared at Cain holding a huge tree that could be the girth of an adult.
　His cheeks seemed to loosen up with a grin as he found his enemy.
　Cain unleashes a 'Rock Bullet' just like Forest Monkey.
　Forest Kong is unfazed by Cain's Rock Bullet (Rock Bullet).
　In this forest, Forest Kong and Forest Monkey coexist, and they must have thought it was the same magic.
　However, Cain's magic is an order of magnitude different, including its power.
　The rock bullets (rock barrettes) that hit Forest Kong's chest went straight through his back and out.
　The unexpected power made Forest Kong's expression of surprise - and then he died.
　Cain confirmed that he had died out and housed it in the item box.
　In the forest, he also encountered a pack of other Forest Wolves, but they were not Cain's enemies.
　And after an hour or so, Cain made his way through the forest and went further down the stairs that led down.
　The twelfth underground floor is a rocky place, and Cain proceeded to the lower floor while annihilating the demons that appeared in the same way.
　By the time he noticed, he had already descended to the fifteenth underground floor, the same as the upper level of this dungeon's exploration.
　A grassy field spread out in front of him. There was nothing to obstruct it, just a grassland that stretched out for several kilometers.

'So this is the deepest part now: ......

　Cain had been briefed beforehand, but as expected, he hadn't been briefed on the contents of the dungeon. He probably didn't expect to suddenly descend to the lowest level that the Adventurer's Guild understands in the dungeon he is entering for the first time.
　Cain went on to use exploration (search) and explore the reactions around him.
　As he proceeded, what appeared was an earth dragon (earth dragon).
　However, it was a group. They swarmed around a small rocky hill about ten meters long.
　Basically, Earth Dragons often stay alone and never live in groups.
　In front of him, there must be dozens, even hundreds of them. The ground was filled with Earth Dragons that were more than five meters tall, and the sight was an impressive sight.
　From the Adventurer's Guild, one could clearly see that the fifteenth floor was the limit of exploration.
　There were swarms of earth dragons (earth dragons), classified as A-ranked. An ordinary adventurer would not be able to handle them.
　How many adventurers would be needed to deal with this many Earth Dragons when they needed to attack a single monster with a party? With a few hundred A-ranked adventurers, it would be possible, but common sense dictated that it was impossible.
　In fact, those adventurers had witnessed this scene and fled for their lives.

　Then the crowd of earth dragons that seemed to be relaxing looked up at once, and their eyes were drawn to Cain.

''What? Why are there so many of them!　Seriously!

　The situation was so great that even Cain was salivating at the sight of it.
　Then the five earth dragons closest to Cain started running towards him.
　I couldn't help but jump up in a "floating" motion.
　They are not the only ones who have the ability to make a difference in the world.
　You can find a lot of people who are willing to pay for the services of this service.

It's a good thing that you're able to get your hands on some of the most important things in life. .... I knew it was a rock bullet (rock bullet).

　Cain filled his hands with magic power. He condensed more magic power than he usually releases and released the magic.

'Rock Meteor Shower (Rock Meteor)'

　Over hundreds of rock bullets appear around Cain.
　And all at once, they attacked the earth dragons (earth dragons).
　Some pierced their heads, some pierced their bodies, and some screeching cries echoed across the grassland.
　By the time Cain finished releasing his three spells, there wasn't a single moving demon in sight.

''That's a lot of material.''

　Cain descended from the sky, his eyes shining on the materials to be taken back by the Adventurer's Guild.
　He then stowed the dead earth dragons (earth dragons) one by one.
　As he approached the rocky mountain while stowing them away, Cain's exploration (search) responded.

　Suddenly, the ground rumbled, and the small rocky mountain surrounded by the earth dragons began to move.
　The boulder lifts up and its arms and legs come out, and finally its neck comes out.
　It must be over twenty meters long. It was a demon with a face more like a crocodile tortoise than a dragon, a thick neck about two meters long, and a shell like a rocky mountain on its back.
　Although Cain doesn't know it, this demon is called a rock dragon (rock dragon) and is considered SSS in the rank of demons.
　Aside from the size of the demon, it is covered by a thick rocky shell, and its magic and sword skills are almost useless. It is of a higher rank than the Red Dragon displayed in Cain's mansion.
　Although it moves slowly, there is no one to interrupt its actions, and it is a demon that is considered to be of the legendary class.
　If this rock dragon appeared in the city, it would be destroyed for sure.
　It is such a monster that there is no guarantee that it can be defeated, even if the country is willing to put its dignity on the line with an entire army.
　The rock dragon slowly looked around at the devastation around it and then looked at Cain.
　Its eyes stared at Cain in a straight line as if filled with hatred, and its large mouth slowly opened.
　A number of rocks the size of a person's head were released from its mouth.

''Abyss!

　The magic that was suddenly unleashed startled Cain and he used the transference to avoid it.
　And from a short distance away, Cain looked over the entire rock dragon (rock dragon).

''There's a big one like this ...... amazing!　But ...... how do we beat it? ......

　With the transition, the rock dragon (rock dragon) lost sight of Cain and slowly turned its head to look for its target.


　In the meantime, Cain stood on top of the rocky mountain shell on his back and thought about how to defeat it.