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"It's over~~~~~~~~~~~!"

When I heard the sound of the system that announced the clearing of the first floor's quest 【Demon Wolves Extermination】, I laid my body down while shouting like that.

By switching my sense off from battle, the accumulated fatigue started to show itself.

"S-so tired… I’ve been fighting in this condition, huh. I did a good job if I do say so myself."

When I praised myself, the sound of the system once again reverberated in my mind.

『As the first floor has been cleared, the subject has become able to challenge the second floor』

『Please choose whether to challenge the next floor or retire within 24 hours』

『If retire is chosen, the subject will never be able to challenge the Isolated Demon Tower again』

Well, that seems to be the case. I could choose to retire if I deem capturing this dungeon impossible or even if I decide to challenge the next floor, I could take a rest for 24 hours.

"Now, what should I do. There are still some things that I have to think before deciding."

And that was about whether it was possible to use my [Transfer Within Dungeon] to re-enter this dungeon–Isolated Demon Tower. If it was possible, there may be an option to return here again another time.

Because, as long as I have challenged this once, I should be able to level up in another dungeon again after all. A part of me also wants to come back here once my level has doubled for easy capture.

"However, this dungeon is different from the normal dungeons. I don't even know if I could use Transfer Within Dungeon to enter again or not…. Above all, even if I am able to challenge it again, there is no guarantee that the quest will be generated."

If I believe in the sound of the system, I can't advance to the next floor unless the quest is cleared. There is a high probability that the capture reward from such a high difficulty dungeon like this will also be excellent.

If that's the case, I want to obtain it by all means. Which means, extreme risks should be avoided as much as possible.

"This means…there is only one answer. I have to advance to the next floor!"

But it doesn't mean I needed to do it right now. I wanted some time to recover my HP, MP and stamina too after all. Thus, I will make good use of the bestowed 24 hours to the utmost!

"…. I also have to at least provide some nutrition for my body."

Raising my fatigued body, I took the water and food that I had prepared from [Item Box]. Although I had almost no appetite, I forced myself to eat.

Next, I took the sleeping bag out of [Item Box].

"I prepared this just in case because I thought the possibility of sleeping outdoors was high. Although it would be difficult to deal with the surprise attack from monsters, apparently there are no more monsters on this floor. So I am sure it would be fine."

Such being the case, I tried to sleep in my sleeping bag but….it didn't go well.

"__Too bright!"

The ceiling was a blue sky and the whole area was an endless grassland. There was no way I could sleep in such a place without shade, causing my hatred for the sound of the system to arise.

"Oi system’s sound! Can you somehow do something about this blue sky?!"

To relieve my anger, I shouted. But of course, it didn’t mean I was expecting a reply.

Yes, I didn't expect any reply but–

"–Eh?"

–Immediately after that, somehow the blue sky turned into the night sky.

"Don't tell me it responded to my words? It seems the sound of the system unexpectedly also has a kind side…"

Just when I saw the sound of the system in a more positive light, I quickly regained myself.

"Calm down me! Isn’t it just a typical technique of giving a little kindness to turn over my opinion towards it after giving me so much hard time? Damn, it almost deceived me…."

Looks like I succeeded in escaping such disaster in a hair's breadth. Yes, the sound of the system is trash. Let's repeat these words, so I won't forget about it.

"The sound of the system is trash!"

Then, the night sky returned to the blue sky.

"I’m sorry, it’s a lie!"

As I apologize, the blue sky became the night sky once again.

"Oi, what the heck is this. Isn’t it like the sound of the system has an actual emotion… Whatever, let's just sleep."

Tired of it, I decided just to sleep as it is. Soundly, for more than 10 hours.