I Make a Contract for the World

In a world where contracts determine everything, a young escort who only wanted to be an ordinary mortal was forced to sign the most unequal "sell-out contract" and became a pawn of the gods and demons, struggling hard in the chess game. He just wanted to live an ordinary life, but he was forced to take charge of the source of all deeds as a mortal. ————As a contract holder in the world, I should set new rules for the world!