currency book

It was a different world with different lands, seas, and countries. In this world existed demons which seemed to corrupt the world, however, they were only in their spiritual form. Demons made contracts with humans, then with the contract with demons, the humans'''' lives were made better. However, with the help of demons, those humans obtained power that was not supposed to be in the hands of mere mortals, and due to that, occasional disasters and chaos occur.