The Twilight Duke Ira Dasko tore open the curtain and turned to say to Leoz:
"Suddenly I remembered, I have someone here who might be useful to you. I'll hand him over to you."
Leoz descended the steps and entered a closed dimension, with the oppressive atmosphere around him even feeling somewhat suffocating for him. He touched the wall of the dungeon:
"This feels a bit strange, isn't it material?"
"Prime Number Brick, a closed concept created using prime numbers, the characteristic of the void is to transform originally abstract ideas into an existence that is neither material nor fantasy."
Ira still wanted to explain a few sentences, but what came after was already indescribable in language or words. Leoz understood but didn't know how to express or remember it.
He didn't ask more and continued walking down.
"Using this sort of thing to build a dungeon, the people imprisoned here must certainly be extraordinary."
