The young Ail's mental body landed softly in front of Gandalf, his cheeks puffed out in frustration.

'Eil Sethroumnir ...... wasn't gone yet... ......

　I've heard the murmur that I had unintentionally spilled into my ear, and Eil looks at me with narrowed eyes.

　After being flung out of my right eye by Demon King Gandalf's hand, I noticed that he had disappeared, but it seems that he hadn't disappeared.

...... In the first place, when you interrupted us in the 'right eye' before, I thought it had disappeared, leaving only a seal behind. Have you been peeking at it all the time, by any chance?
No way. I just took the time to rebuild it. They couldn't have been able to perceive the outside world in the first place. Believe it or not, that's up to you.

　It's easy to suspect that it's a lie, what it is, but as expected, that's not the situation now.

　Unlike other dungeons, the ancient magical civilizations that hid in the Ark of the Elements had a well-managed environment and Eivaldi's opposition, so unlike other dungeons, they did not have to take various measures to maintain their population.

　However, if it was The Chalk Fairyland, the home of Eil and the other High Elves, it wouldn't be surprising if it had a different history than this dungeon.

　It seems that Eil herself has a clear understanding of what she was called up for, and without needing to make a request from us, she began to talk about it.

I'm sure you'll be able to find out what's going on in the world," he said. I'm sure you'll be able to find out what's going on in the world and what's going on in the world.
Is that why humans are dying out?

　'Yes,' Ail affirmed briefly.

'Of course, we tried to use Lieveslasil to boost the bottom of the population. It worked for a while, but ...... we soon found out there was a problem.
Problem?
'Anyone with the blood of Liebslasil could not use magic.

　Astonishment - didn't even come to mind now.
　It's not just me, but also Garnett and the others have the same reaction, and they just say they had it in mind.

　If the 'magic' used by the ancient magical civilization and our 'skills' are strictly different, then it's clear that the biggest difference lies there.

　I'm not sure why he was talking about Lievesrasil if it was completely unrelated.

The bad news is that we didn't have that problem in the first place. I'm not sure if it's a good idea, but I'm sure it's a good idea for you to be able to get your hands on it. But.

　Suddenly, a small question passed through my mind.

　Gandalf himself said something like 'I don't care about humans', and he said that was the biggest difference between him and Ivaldi.

　But at the same time, when Gandalf showed me a glimpse of Alphasul's power, he seemed to want to get his hands on my power, whether he wanted it or not.

　The resurrection of Alphazul is desirable, but I don't care about the survival of humans. ...... Could it be that the resurrection's primary identity didn't have to be a human of my own race?

The watered-down population was not capable of sustaining a civilization based on the existence of magic. Many theories were cried out for the cause, but there was no way to get it back. There are even people who claim that Lieveslasil itself was a trap set by Loki.
That's why most of the dungeons are now devoid of humans: ......
''There's still one more step in between. How could the supposed descendants of an ancient magical civilization meet their demise through inaction?

　I'm troubled to be told that there is such a thing - I made the point with Gandalf as well, so let's not repeat the same thing.

　It's enough to understand that it's common sense for the demon race that lived in those days.

''What they found as a breakthrough was the magical crest that Alfazul left behind as the foundation of their revival. Although it didn't seem to accomplish their original goal, that research had a couple of beneficial results.

　Eil holds up one thin, white finger.

'The first is the extremely limited inheritance of Alphasul's magic. Although this in itself was only a trivial power, it could be applied to a generation that had lost their magical abilities ...... which means that the magical crests could give them pseudo-magical operational functions.

　Next, another one.

Secondly, the magical crest was passed down through the bloodline. The second one is the inheritance of the magical crest by bloodline, the descendants left behind after the magical crest was carved into them were able to inherit it without having to take any measures. This is probably Alfasul's fail-safe in case the technology for creating the hyperfine magical crests is lost.

　I remember the magic crests that are passed down by bloodline, too.

　The pattern that Sakura's family developed to stabilize the gods' descent also had the function of being passed on to their descendants once it was inscribed.

　Even though it was a different culture from the Westlands, if it could be achieved by modern humans, it would not be surprising if it could be done by the ancient magical civilization.

''By combining these, the humans of that time developed magic crests that replicated various magic operational functions and built a system that was passed down from generation to generation by bloodline. A pseudo-magical revival of magic, so to speak. I thought it was a big deal!　That's the race that Alfazul loved!　I said!

　Eil voiced his admiration, making grandiose gestures as if he were the star of a play.

　But I knew that this was only a prelude to a tragedy.

'But there was a problem with that system too, wasn't there?
...... sad, but true.

　The example I came up with: ...... There was also a structural flaw in the magic crests of the cherry tree.

　It is inferior(──)ization(──).

''This pseudo-magic system had the property of inheriting my parents' abilities. Of course, at first it was thought to be an advantage. For example, if the father could use fire magic and the mother could use ice magic, then the child could use fire and ice magic.

　With each successive succession, the pattern continued to deteriorate, undermining the function that was originally expected of it and making it completely useless in Sakura's father's generation.

　By me [repairing] that deterioration, I was able to restore the function of controlling the gods' descent, but if I hadn't come up with this idea, it might not have been possible to restore it.

''But as generations went by, I came to understand. That inheritance doesn't come from adding a hundred and a hundred to two hundred talents. It's just dividing up a hundred capacities.
'If the first generation has one hundred powers ...... the second generation has two fifty powers ...... the third generation has four twenty-five powers if there is no overlap...' ...
'Yes. It's a good idea to have a good idea of what you can do with it and what you can't do with it when it's less than 10% of the ...... calculation. The functions of each ability have become so small that none of them are able to show their power.

　Ail looked up at the dark ceiling with a smile on his mouth, but his eyes were somber, as if he were recalling a distant memory.

'The humans back then were no better than Alphasul. They couldn't minimize the degradation of each inheritance, and they could no longer afford to keep the 'density' of the breeding conditions strict enough to maintain it.

　How much fear was it for the humans who survived?

　The population is steadily decreasing in the harsh environment of the dungeon.

　The bright light of population recovery through the use of Leveslacil - and the darkness of the disappearance of magic that awaited them immediately afterwards.

　It's a good thing that you're not going to be able to get away with it, because the pseudo-magic that you created by scrambling in the dark was only a temporary fix for you, and over the years it has faded away.

"The legacy of the ancient civilization left in the dungeon could not be maintained and operated, and communication between the dungeons was gradually broken, and finally extinct from the Chalk Fairyland that we managed. ...... This is as far as I've witnessed in person and with my own eyes.