The trade, the content of exchange, has no limits because there are too many unique individuals in Hell.
If a demon likes stories, it's entirely possible to trade a fascinating story with it.
The universal currency there is "souls," unless it's a special trade.
"How do souls get obtained, and how do they get carried?"
"The soul itself, and the demons. The more powerful the being, the stronger its soul, and the higher its value," Ruth's voice came from behind: "Low-level demons have the most inferior souls, especially the Hungry Demons like the one by your side. As mentioned before, most of them are left with only the faintest instincts to support their empty shells."
"As for the second question, the souls of those you kill will transfer to you, allowing you to live longer in Hell. When you need to trade, just pay with souls."
It sounded like "life" brought about by salvation, but "life" was more ambiguous, not as straightforward as the soul.
"What should I be aware of?"
