World's Fastest Level up!

The day after I went to a dungeon with Yui, Hana and Rei. I came to a C-rank dungeon called 【Niimi Dungeon】.

Although the monsters that appear in this dungeon could use magic just like Marou Dungeon, I was nevertheless able to capture the dungeon while receiving almost no damage because of the overwhelming difference in level and having the Demon Wolf Ring (True) in addition. And as always, I captured it over and over again at a super speed by using [Transfer Within Dungeon].

『Dungeon capture reward – Level has increased by 12』

『Dungeon capture reward – Level has increased by 12』

『Dungeon capture reward – Level has increased by 12』

『Dungeon capture reward …….

Two days since I single-mindedly started capturing the dungeon, I finished without any problem.

『You have captured this dungeon for a specific number of times』

『Bonus reward – Level has increased by 25』

『You won't get any reward for capturing this dungeon in the future』

"The 8th one, huh. Things are going smoothly."

In Niimi Dungeon, I was able to raise my level by 625 in total. Alright, let's keep conquering other dungeons at this pace.

And from the next day, I was going to conquer a certain D-rank dungeon.

『Dungeon capture reward – Level has increased by 6』

『Dungeon capture reward – Level has increased by 6』

『Dungeon capture reward – Level has increased by 6』

『Dungeon capture reward ……..

『You have captured this dungeon for a specific number of times』

『Bonus Reward – Level has increased by 10』

『You won't get any reward for capturing this dungeon in the future』

A total of 310 level-ups.

Then from the day after conquering the dungeon, I went to conquer another E-rank dungeon.

『Dungeon capture reward – Level has increased by 2』

『Dungeon capture reward – Level has increased by 2』

『Dungeon capture reward – Level has increased by 2』

『Dungeon capture reward ……..

Since it's an E-rank dungeon, the number of captures that I needed to do to conquer it was considerably higher than the other dungeons. However, I could continue my capture over and over again without getting dispirited. And finally the moment that I had been waiting for came.

『You have captured this dungeon for a specific number of time』

『Bonus reward – Level has increased by 5』

『You won't get any reward for capturing this dungeon in the future』

"It's finally overrrrrrrrrrrrrrrrrr!"

After completely conquering the 10th dungeon, I spontaneously expressed my joy with all my might. Leaving aside my physical fatigue, I did that to release the mental strain that had been accumulated during the tough countless captures.

Simultaneously, I remembered what was written in the description of the ‘Dungeon Conqueror' title.

______-

Dungeon Conqueror (10/10)

・Title given to one who has conquered a dungeon.

・Various benefits will be given by conquering a specific number of dungeons.

______-

“Various benefits will be given by conquering a specific number of dungeons” was written in the description. And just now, I have conquered exactly 10 dungeons which was the said specific number.

Will it be adding another effect to the title, or will I acquire some kind of skill? I was very excited to see what kind of benefits will be given. That’s why, I think it would be fine for me to honestly feel delighted without thinking about anything right now.

"Now, what will I get? Even I was only able to clear this condition which normally is a super-high difficulty one in a few months because I had Transfer Within Dungeon. Therefore, the reward likely will be a fairly good one…"

I had such expectations in my heart. However, the actual benefits that were given to me were completely different from what I had imagined.

『The number of dungeons that the titleholder conquered has reached 10 confirmed』

『As a benefit, the titleholder will be given the right to challenge the Extra Dungeon 【Isolated Demon Tower】』

"… What?"

I subconsciously tilted my head because I couldn't follow what the system sound just told me.

Did it just say the right to challenge Isolated Demon Tower?

Although it’s not for answering the question that I had in mind, the system sound continued.

『A detail have been inputted in the subject's status』

『The subject cannot level up to the next level until he challenges the Isolated Demon Tower』

『The internal information of Isolated Demon Tower has been changed to match the subject's status』

『ERROR. Isolated Demon Tower does not exist. We have confirmed that the subject will became the world's first challenger』

『The creation of Isolated Demon Tower will be conducted』

In the next moment, the whole dungeon I was in–No, the whole world shook.

"What’s happening?!"

However, there was no way to ascertain what was happening outside as I was currently inside a dungeon. In the end, I had to withstand the shaking on the spot for a few minutes until it subsided.

And as the shaking subsided, the system sound resumed its announcement.

『The creation of Isolated Demon Tower has been completed』

『Well then, we will be waiting for the subject to challenge it.』

The system sound didn't continue any longer after that. In exchange, a piece of paper was dropped in front of me.

"This is…"

Using [Appraisal], I was able to read the information on the paper.

______–

Isolated Demon Tower Challenge Ticket

Subject: Amane Rin

・Ticket given to one who has conquered 10 dungeons.

・By ripping this ticket near the Isolated Demon Tower, the subject can challenge the Isolated Demon Tower once.

______–

"Honestly, I haven't digested all the information that I just got but… To put it simply, it told me to challenge the Isolated Demon Tower with this, right?"

To be frank, there was no need to respond to such an unfamiliar invitation, but the problem was the words that the system sound just said.

‘The subject cannot level up until he challenges the Isolated Demon Tower which was not a problem that could be overlooked. Thus in conclusion, I have no choice but to challenge it.

"But, what the heck is Isolated Demon Tower in the first place? I have never heard such words, and I can't go without knowing the location too… Oops, finally, the transfer magic is activating, huh."

Perhaps related to that mysterious shaking, the transfer magic was only activated after a longer time than usual. As the transfer magic activated, I returned to the surface.

And then, I was greeted by the scene in front of me.

"What on earth, is that…?"

The scene which spread in front of me made me at a loss for words. Not only me. Everyone around me also looked in the same direction and widened their eyes.

Towering far away from here was a huge tower that pierced the heavens. Until yesterday, no, something like that didn't even exist a little while ago.

While no one in the world recognizes what it was, surely I was the only one who knows.

"That was the Isolated Demon Tower….the dungeon that I have to challenge hereafter."

And when I decided to challenge that place from the next day, I came to know. The true meaning of dungeon capture.