Interesting. It was publicised to all Demon Tamers in my world, so it is probably safe to assume that it did not exist in yours. They gain a lot of profit from dealing with humans, so there would be little point in keeping it secret from them in certain areas.
How will this contracting between humans and demons in real life work, then? Demons are extremely fickle beings, and usually require a form of tribute or favour to cooperate with the human's demands - and even then, they do not form contracts and are free to leave once the demand is filled.
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How will this contracting between humans and demons in real life work, then? Demons are extremely fickle beings, and usually require a form of tribute or favour to cooperate with the human's demands - and even then, they do not form contracts and are free to leave once the demand is filled.