"It's always good to eat, but there's something special about eating after a big day at .......

"That's it.

I handed them both some beast chips on the way to the airport, and ......2 they both gobbled them up with more gusto than usual.


...... We're almost there.
I thought as I caught sight of the red lake - the one I always used as a base to get to the moon - out of the corner of my eye.


This is where we're going.
I believe that the liquid in this lake is the key to the effective use of fluorengedic acid.

The liquid in this lake is strongly alkaline.
Of course, no matter how strong the alkalinity is, it is not enough to neutralize fluorinated acid on a one-to-one basis. ...... There is a huge amount of liquid in the lake compared to fluorinated acid, and it should be possible to make it neutral by adjusting the mixing ratio.

Since this lake is not an environment where living things can live, there is no need to worry about the destruction of the ecosystem caused by the neutralization of alkali.
In fact, it is precisely because of this environment that I froze this lake and used it as a foundation.
In that sense, this lake is convenient to use.

"Belzebub. Now I'm going to neutralize the fluid in this lake with fluoro-renched acid. ...... Can you help me measure the liquidity of the mixture?

When I reach the top of the lake, I ask Belzebub to do so while I slow down the myotrope.
Then ......

"No problem. It's easy enough to see.

Apparently, this request was a piece of cake for Belzebub.

So let's get started. Caucasus, can you put up these wards for me?

He took out a writing utensil from his storage spell, drew a triangular flask and a funnel, and asked.
Then Caucasus made a huge warded triangular flask and funnel appear in the air, and I filled the triangular flask about half of its volume with liquid from the lake.

I then placed the funnel on top of the flask and placed the dragon's corpse on top of the funnel.

With the divine power flowing at maximum output, I poked it with my Lunametal sword at the point where it was about to break, and fluorinated acid flowed out from there.

After about ten seconds, the funnel-shaped ward that was in direct contact with the fluorengedic acid was about to break, so I returned the dragon's corpse to the storage spell and asked Caucasus to put up a new funnel-shaped ward.

After repeating this process several times, Belzebub signaled me to stop. ...... I decided to stop the neutralization process there.

"What's the pH level?

Hmm, about 1.5.

The neutralization process was quite rough, so I thought it would not be exactly neutral, so I asked him that. ...... It's still quite acidic.

Well, it's pretty good when the pH is above 1 using fluoro-lentigenic acid for neutralization.

Now we need to adjust the pH to be closer to 7 by adding more liquid from the lake.


It took us about 10 minutes of fine tuning.
We finally have a liquid with a pH of 7, or as we call it, a fluorescein salt.

We divide some of it into bottles and put the rest away in a storage spell.
Then, after telling Caucasus that it was safe to remove the warding, he handed the bottle to ...... Belzebub and asked him, "What kind of chemicals are in this liquid?

"Do you think this liquid could be used to make some sort of potion?

Then ...... Belzebub began to groan, "Hmmm.

"I've got some ideas, but ...... I'm going to have to work on the theory a little bit, so please wait a little while. ......

...... Do you have an idea?
It's a good thing that you're not the only one who has a problem with this.

It's a good thing I came here.

I don't have anything else to do today, so I'll just wait and see what Belzebub comes up with.
With that in mind, I moved to the top of the Myotokumo, took out the school cafeteria from the storage spell, and decided to have a late breakfast.

After I finished eating, I lay down on the myotrope, remembering the days when I was busy in the dungeon until I defeated Suzaku.
While I was looking up at the sky and enjoying the free time I hadn't had in a while, ...... Belzebub said excitedly in telekinesis, "This is going to work! Belzebub excitedly told me in telekinesis.


"What do you think you can do?

I'll tell you what. Hey, ......, can I borrow that super-stretchy stick?

That super stretchy stick ...... you mean the ruyi-bou.
I took it out of my storage spell and gave it to Belzebub.

Then ...... Belzebub began to apply fluoro salt to the stick.
It seems that he is carefully spreading a thin layer of salt to make it even.
After a while, when he had finished applying it to the entire ruyi rod, ...... Belzebub shot a magic power of an unusual wavelength at the ruyi rod.

As a result, the stick glowed suspiciously.
When the stick stopped glowing, Belzebub began to apply the fluoride salt to the stick again.

He repeated the process several times.

"It's done!

Belzebub returned the seemingly unchanged wand.

"What's changed in ...... this?

"It's expanding and contracting a little faster.

What exactly do you mean by "slightly"?

"Well, it's about eight times faster, roughly.

Eight times ....... Wait, what?
Does that mean I can now ...... make it to the moon and back in one day?