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Chapter 6

Innocent Treasure Box

“It’s forbidden.”

“H-huh?”

It seems that my magic had indeed accumulated to 5, allowing me to create the treasure chest using my magical energy.

In exchange for that, I ended up falling asleep, and when I woke up, I found Fiona-sama’s dissatisfied face right in front of me.

“No pushing yourself. That’s an order from the Demon Lord.”

“It wasn’t exactly pushing myself…”

“You understand, right?”

“…Yes.”

If I think of it as her worrying about the health of her subordinate, this workplace might actually be relatively good.

With a little sense of reassurance about my environment going forward, I decided to check on the treasure chest that I had left unattended.

“It looks like a typical treasure chest.”

“I’m not sure what you mean by ‘typical,’ but it’s the same as the ones generated in dungeons.”

“Dungeons generate treasure chests?”

“Yes. If there’s abundant magic within the dungeon, it gathers and generates treasure chests.”

Maybe it’s a system to consume the excess magic that has built up. In my case, I use skills to consume it first.

So, unless I choose to create a treasure chest, it probably wouldn’t be created on its own.

“Also, the more you leave it alone, the more magic is injected into it, and eventually, it turns into weapons, armor, or items to help intruders… It’s quite troublesome.”

“Couldn’t we just collect it before the intruders arrive?”

“It seems demons can’t open them… It’s really a system that feels like the dungeon’s way of causing trouble.”

Once again, Fiona-sama gazed off into the distance.

Could it be that this Demon Lord is going through a lot of trouble?

“In that case, it might have been a bad idea to create it carelessly. I’m sorry.”

“No, it will end up being created on its own anyway. It’s better that we know where it is like this.”

If I manage the magic within the dungeon, it should stop being created on its own.

So, Fiona-sama must have said that to show her consideration for me.

“But, it’s a shame we can’t open it after all the trouble of making it.”

The chest had the classic treasure chest design.

Even if I’ve never played this kind of game, I’m drawn to its romantic shape.

I wanted to open it and get whatever was inside, but I lightly tapped the chest’s lid with my hand, feeling a bit regretful.

“Huh… it opened.”

The chest opened easily, as there was no lock.

Inside was a single glass bottle containing green liquid.

“…I opened a treasure chest. Even though I’m a demon? Maybe it’s because I’m a reincarnator. Or maybe it’s because of my authority as the dungeon master?”

Fiona-sama was surprised but quickly started thinking about the cause.

However, she seemed unable to reach a conclusion and seemed to accept that, for now, I was the one able to open the chest.

“That characteristic of yours is wonderful. This way, even if a treasure chest is made, it won’t be misused by other races.”

“I’m not sure what’s inside, but maybe it could be used to replenish supplies.”

I handed Fiona-sama the item I had just found, and she observed it with her fantastical, translucent eyes.

Perhaps because her features were so well-defined, everything she did looked beautiful, like a painting.

“It’s a healing potion… Unfortunately, it’s the weakest kind.”

“So, it seems the quality of what’s inside treasure chests isn’t something we can expect much from.”

“…No, perhaps we might be able to improve the quality.”

As expected from the king who had made the dungeon his base.

Unlike me, who lacks knowledge, she quickly came up with some method.

“Shall we try making a treasure chest again?”

“…”

Why the sideways glance now?

“Aren’t you worried you might collapse if you overdo it?”

“If I use my own magic, I might collapse from exhaustion while trying to recover.”

“Then, it’s not a good idea.”

Hmm… A white Demon Lord army…

It seems that using the dungeon’s magic is the only option.

As I was thinking about that, I noticed the healing potion that Fiona-sama was holding.

“Does that healing potion also recover magic?”

“Yes, but only a little.”

Since my magic is also quite low, it shouldn’t be a problem.

In fact, I might be able to restore all my magic with just that healing potion.

“In that case, if I make a treasure chest and then use the healing potion to recover my magic before I collapse, maybe I won’t lose consciousness.”

“…That’s quite a dangerous idea you’ve come up with. If you don’t make it in time, you’ll pass out, you know?”

“…Well…”

“Well, fine. In that case, I’ll force you to drink it myself.”

“Thank you…”

I finally got permission.

In that case, I would make the treasure chest with my own magic and not waste the dungeon’s magic.

I held the healing potion that Fiona-sama had given me in one hand, while preparing to touch the menu screen with the other.


Treasure Chest Creation: Magic Cost 5

I selected the option.

Before I knew it, the sleepiness suddenly overwhelmed me, like my mind had been shut off.

If I could drink the healing potion before I passed out…

“Hah…”

“…Watching you, this seems quite dangerous.”

“I-I’m sorry… I’ll do it better next time…”

“I hope you don’t push yourself next time…”

Somehow, the plan worked.

The sleepiness quickly disappeared, and my head and body weren’t feeling any particular discomfort.

“Well, it’s the same type of treasure chest as before.”

“Yes, all newly created treasure chests look like this.”

Saying that, Fiona-sama placed her palm over the chest.

The chest gradually began changing, becoming more luxurious in appearance.

“Eh, w-what’s going on here!?”

“I’m injecting magic into it. As expected, it seems that by absorbing the excess magic from the dungeon, the quality of the chest improves. And it looks like I can achieve the same effect by injecting my own magic.”

The wooden chest had already transformed into a luxurious metal one.

It looked like something that would appear in a late-stage dungeon, rather than the early one we were in.

“…But I can already tell. By injecting magic, it seems that the contents are also changing to match the quality of the chest.”

“Eh, really? I want to try too.”

“Rey, you can’t. You’ll collapse again, right?”

With a smile, Fiona-sama warned me.

Once my magic increases, I’ll try it out myself.

“…I never thought about the limits of treasure chests before, but they really seem to absorb a lot of magic.”

Fiona-sama had been injecting magic for several minutes now.

I wondered what changes were happening inside the chest.

“Despite my appearance, I have quite a bit of magic. It seems like I’m about to reach the limit and will have about 90% of my magic in it.”

“Eh!?”

Despite how she looks, Fiona-sama is obviously the strongest in the world.

So, 90% of her magic is already 9,000 magic points?

“…Well, this seems to be the limit. As expected, about 90%.”

“O-okay… Thank you for your hard work…”

At this point, I was very curious about the contents.

The treasure chest, reinforced with almost all of the Demon Lord’s magic.

It must contain something far superior to the low-level healing potion we saw earlier.

Shaking with anticipation, I opened the chest.

“…Another healing potion?”

Despite the large size of the chest, there was only a small glass bottle inside, almost like it was overpackaged.

The shape of the bottle seemed more refined than the one from before.

And most notably, the color of the liquid was completely different.

It shone in a rainbow of colors, constantly shifting. Honestly, the color made me hesitant to drink it, but it suggested an extraordinary effect.

As I pulled out the “gaming healing potion,” Fiona-sama’s face went pale with shock.

It seemed she recognized this item too.

Before I could ask what it was, Fiona-sama muttered something, and I was shocked as well.

“A revival potion…”

A revival potion…

Does that mean it has the power to resurrect the dead…?


When I Was Reincarnated into the World of an Ultra-Difficult Game, I Ended Up As the Sole Subordinate of the Ridiculously Strong yet Incompetent Demon Lord, Tasked with Creating a Dungeon

When I Was Reincarnated into the World of an Ultra-Difficult Game, I Ended Up As the Sole Subordinate of the Ridiculously Strong yet Incompetent Demon Lord, Tasked with Creating a Dungeon

超難関ゲーム世界に転生したら、ポンコツ最強魔王様のたったひとりの部下としてダンジョンをつくることになった
Score 10
Status: Ongoing Type: Author: Released: 2024 Native Language: Japanese
I was deemed a failure by the goddess and ended up reincarnated into the world of a game known for its insanely high difficulty, as the final boss's Demon Lord. My skill is Dungeon Master, and my race is Demon—clearly, I'm on the enemy's side, not the hero's… Lost and confused, I encounter an overwhelmingly powerful being… Wait, you're the Demon Lord? You defeated the heroes but lost your subordinates and dungeons and now have no motivation…? I seem to have some useful skills, so could I serve you as a tool?

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