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The transfer magic was activated, and I successfully entered the Isolated Demon Tower. And when I saw the scene that spread before me, inadvertently, I doubted my eyes.

"What is this place…"

An endless grassland was spread in front of me. Given the size of the demon tower, I should be able to see its inner wall wherever I go. But I couldn't even see that wall.

And the most shocking thing was the blue sky that was spreading over the upper ceilings. Really, was there even anyone who could believe that this was a scene inside a building?

"Even after taking the vastness and the blue sky into consideration, the fact that I am inside a tower right now doesn't make any sense no matter how I think. Maybe the inside of this tower was expanded with magic? Although I’ve never heard whether such magics exist, the system also said that this is also the first time a Demon Tower appeared in the world in the first place…"

I have thought of some possibilities that may cause this to happen but none of them were convincing enough to be the answer. Let's just see what I can do right now because it is a waste of time just to think about it.

"This place seems to be different from normal dungeons but does my Transfer Within Dungeon work properly? Let's try it–Transfer Within Dungeon!"

As I chanted, I was able to transfer 1 meter ahead.

The fact that [Transfer Within Dungeon] could be used means this place was undoubtedly inside a dungeon even if the mechanism was different. Now the question was, what should I do from here….

"As this is a tower that stretches high to the sky, I thought I should aim for the upper floor but…there are no stairs leading up, and it is a sky above me in the first place. It's suddenly over, you know?"

I guess I should walk around for the time being. Immediately after having that thought, the sound of the system reverberated in my mind.

『Subject: Amane Rin has entered 【Isolated Demon Tower】』

『The Isolated Demon Tower consists of 10 floors』

『There is a quest in each floor and the subject can advance to the next floor by clearing that quest』

『The quest for the first floor is 【Demon Wolf Extermination】. Please subjugate all Demon Wolves that exist on this floor.』

The system sound ended just like that. It seems that's all it wanted to inform me.

"Consist of 10 levels with a quest on each level, huh…. Anyway, now that it has come to this, I have no choice but to do it."

Looks like the quest for the first floor was to subjugate all monsters that exist on this floor. Without any delay, I used [Enemy Detection] to check whether there were monsters around. And then, I promptly found them.

"Five presences at a distance were detected. It seems they're moving at quite a fast speed… Wait, aren’t they coming toward me?"

My guess was accurate as ten seconds later, five demon wolves jumped into my field of vision. Or rather, those were–

"Fire Wolves?"

It’s a monster that I have fought many times in the Marou Dungeon the other day. Five monsters with red-colored fur as their characteristics grouped up and attacked me.

"I see, that's why the quest was called ‘Demon Wolf Extermination'. At any rate, I just need to defeat them first right?"

While taking the Nameless Sword from my [Item Box], I used [Appraisal] on the running fire wolves. And the results were astonishing.

_______–

【Fire Wolf】

・Recommended level to subjugate: 4000

・Wolf-shaped monster that is wrapped in red fur with excellent fire resistance. Besides its agile movements, the flames released from its mouth are its strong points.

_______–

"4000!?"

I reflexively shouted when I saw the recommended level to subjugate that was far beyond what I imagined. When they appeared in Marou Dungeon, it should have been in the level 1000 range. But they became considerably stronger here.

In that small body surely hid a power and magic power that surpassed even that of the King Rainbow Wolf. Although their level was lower than mine, nevertheless, I still can't let my guard down.

"–Here I go!"

Kicking the ground with all my might, I launched an attack.

Even if I used Demon Wolf's Ring (True), their magic attack was still troublesome. That's why it's better to defeat them without them being able to do anything!

"Eat this!"

"Gyaww!?"

The sudden assault was a success, and I was able to defeat one of them before their battle preparation was finished.

Four remaining, I still can't let my guard down.

"Grwaa!"

"Bwaaa!"

"Kuh-!"

Surrounding me, the four fire wolves shoot a flame from their mouth at the same time.

Then after avoiding the flames by jumping into the air, I swung my sword to the enemies with that momentum.

"–The second one!"

"Gyan!?"

After cutting off the neck of the second wolf, I swiftly approached the other three as it is. The flames that they released before conversely covered their field of vision, making it difficult for them to cooperate.

Naturally, I didn't miss that opportunity and defeated the remaining enemies one after another.

"The third one! Fourth one! –And the last one!"

In less than 10 seconds, the remaining three wolves were successfully defeated. And somehow, I was able to finish the battle without suffering any damage.

The demon wolves that I just defeated then suddenly disappeared in an instant. Apparently, the materials cannot be collected in this dungeon.

"Anyway, to start with, five demon wolves have been subjugated. It was an easy fight since the number was only five but if more than 10 of them come and furthermore in various types at the same time, it will surely be quite troublesome."

I could tell it's going to be difficult later, but I could only desperately push on because that's the only choice I have right now.

"But how many monsters exist on this level, I wonder? 100? 200? If it's just that amount, I'll manage it one way or another, but it will be dangerous if it's more than 500 monsters…"

As the number of monsters increases, my HP, MP, and stamina will be depleted too. For a solo like me, a series of battles against small fries was honestly considered as one of the unpleasant categories because of their numbers. In that case, fighting one strong monster might still be easier.

"Well, I have no time to complain, though. I have to clear this quest and break through this floor no matter what it takes! From now on I will not complain anymore! Let’s do this–"

At that moment, the ground in the whole area trembles all of a sudden.

"What? What on earth happens–"

I looked around to find the cause of the tremble, and I found it– or should I say, unfortunately found it. The true identity of this tremor.

"Oi wait. Wait a minute. What on earth is that…"

A black shadow advanced towards me. No, it's not a shadow. It just looked like that from a distance due to the gathering of a large number of monsters.

The number of monsters that made the previous five monsters I just fought look like child’s play was approaching me. It was not even a number that could be counted as 100 or 200 anymore.

At that time, a certain word emerged in front of me. Looking at that, I spontaneously cursed the world.

______–

The First Floor – Quest 【Demon Wolves Extermination】

・Subjugate all monsters on the first floor.

・Current subjugation progress (5/5000)

_______

"…..Anoo, can I go home?"

Just several seconds after making the previous declaration, I immediately complained. Like that, hell has finally begun.