Devil's Bible

There is no female protagonist, the story is dark, boss-like, and the protagonist is not human.
Original western fantasy background in another world.
"Why, why could you break the contract?!!"
Facing the questions of the unwilling ones, the devil made a contract.
The contract was magnified, and he could see clearly the 'paper' that made up the contract.
Those were extremely thin silk threads, woven in a special pattern to form words that carried information.
[Supplementary Clause 1: ….]
[Supplementary Clause 2: ….]
[Final Supplementary Clause: The final right of interpretation of this contract belongs to the demon Nims.]
Nims, who traveled to another world and became a demon, waited for the perfect wave that would come once in a lifetime. Then, having obtained part of the divine power of the commandments, he gradually stole the throne and wrote his own Bible.