If this "dungeon" space is slightly closer to the world's edge.
Then make such arrangements, taking out something absolutely attractive to demons, and establish the rules of the space.
Allow demons to throw in usable carriers, limiting such carriers to [equipment].
Be aware that if it doesn't qualify as equipment, it's insufficient for birth.
Strong demons use strong [equipment].
Weak demons use weak [equipment].
How many are the demons? No one knows.
How many species of demons are there? No one can tell.
Kana wants the power from the birth of these demons, the experience value transformed after their death.
And the carriers dropped upon their death—[equipment].
Meanwhile, demons gain an opportunity and won't have their souls trapped here; they can still escape after dying, just like invading other worlds.
Would the demons gamble by nature?
This question doesn't exist at all because demons definitely swarm in.
If they didn't swarm in, they wouldn't be demons.
