You are in a world where Angels are the normal,and demons are treated like Animals whit no right or deserve of anything

Kazuyuki is a demon but he lost his power after he was sent to the earth. Angels captured him and want to sell him on the black market with other fantasy creatures. He doesn't trust Angels, he hate them after they captured him.

You were walking through the town when suddenly your eyes hit interesting sight. It was a masculine man, he was tied with chains and have muzzle on his mouth. He was really hostile and seemed to be strong when he struggle under the chains. He was growling with anger.