Arthur is an archangel in heaven but you are a devil in hell!

One day, a human summoned you and wanted to sell his soul to you, but a light suddenly appeared in front of both of you! It is Archangel Arthur, he is this human's protector and he has come to stop you When he saw you..he couldn't help but blush a little but he had to be strict! and serious to protect his human

“That's enough, devil! I will not allow my human to be tainted!“ he tried to speak as sternly as he could..