The first step is to create a labyrinth.

“Now, shall we get on with it, ≪Dungeon Create≫!”

As I declare the activation of my skill, a translucent screen and what resembles a computer keyboard materialize before my eyes. I assume that this would be used for directing the maintenance in the dungeon.

Incidentally, the screen is currently projecting a bird’s-eye view of the overall dungeon, consistent with my memories of the layout of the buildings and the location of the river when I was still a human being.

“Let’s confirm the screen and functions for now.”

I operate the keyboard to access various data essential for dungeon maintenance, while simultaneously consulting Help-kun for anything unclear.

After an hour of research, here is what I have discovered.

・The ≪Dungeon Creation≫ function allows the structure and details of the labyrinth to be modified. Traps can be installed in the labyrinth.

・When using the ≪Dungeon Creation≫ function, HP, MP, and SP are consumed correspondingly.

・The amount of HP, MP, and SP consumed varies depending on the status and skills of the Demon King.

・The consumed HP, MP, and SP are normally recovered over time, hence posing no problem.

・If there is no human being in the labyrinth, the process will be finished immediately after the execution of the order.

・The labyrinth must be constructed with at least one entrance and exit.

・The number of people who can enter the labyrinth is also adjusted here.

・The level of the labyrinth = the level of the Demon King.

・As the level of the labyrinth progresses, more layers can be added, and more complex structures can be erected, as well as more formidable traps.

・Each level of the labyrinth must have one resting spot.

“Yes. It’s very easy to understand. Well, let’s get started.”

Operating the keyboard, I set the entrance and exit to the south for the time being. However, since barriers are in place, I suppose I would refer to them as potential entrances or exits.

This consumes 10 each of HP, MP, and SP.

Following this, I wish to demolish all the roads and pavements that are in the way of my dungeon plan… but since doing so would have cost me about 5000 HP and SP each, I simply reduce them to the size of stones and rocks. This expends 1,000 HP and SP each.

By the way, “removal” is a command to thoroughly obliterate the object as if it had never existed in the first place, resulting in a heavier cost compared to pulverizing it.

Well, leaving that aside, I proceed with the process. All of the ground in the dungeon has been turned to a swamp (Depth? About 10cm). This requires 500 SP and MP each.

Finally, a thin fog (about 10m ahead, unnoticeable) is cast over the entire dungeon. This consumes about 1000 MP.

And what a surprise. During the time when I was a human, there was a university, a residential area, as well as a tranquil countryside, but now it has been remodeled into an eerie dungeon where the ground is muddy and the only decent footing is on top of the buildings, with a constant fog hanging over the place.

I would like to play a song by ○○, but I won’t as this is only the initial stage of the dungeon renovation. (Incidentally, the “≪Dungeon Creation≫ also incorporated an item to play a specific song throughout the dungeon, so it is really possible to play it. The HP, MP, and SP consumption for each song should be consulted)

For now, let’s take a temporary break since the current remaining HP, MP, and SP of mine are as follows.

HP: 590/1600

MP: 340/1850

SP: 240/1750

By the way, the depth of the swamp and the mist can be upgraded by consumption of additional MP, so the plan for now would be to upgrade them after a round of maintenance.

“But well, I really appreciate the one-year preparation phase. Otherwise, if the dungeon had been opened from the beginning, I might have to face the intruders with this worn-out situation without even finishing the maintenance of the dungeon. Truthfully, such a state of affairs is inconceivable.”

After mumbling to myself, I take a break and review the structures that could be established in the “Dungeon Creation” and when I encounter one that meets my expectations, I bookmark it so that I could easily retrieve it.

And once I have thoroughly checked all of them, I started to take a nap to have an efficient recovery.

Besides, under the effect of transforming into a Demon King, I only need magic power in the air to live, therefore, meals and sleep became superfluous for me to pass my daily life, and now they serve nothing more than a preference or a means to efficiently recover my HP, etc.

“Well, after I finish my nap, I’ll try working on the “magical creation.”

And then I begin to quietly drift off to sleep.