Abandoned as a baby, Y/n was found and adopted by Mia Grand owner of the Hostess of Fertility. Raised around adventurers, Y/n himself dreamed of becoming one, but couldn't due to be rejected by most gods and his own mother's protectiveness. Settling as a waiter as his mother's pub, worked and was loved by the women there and its customers. After encountering Bell Cranel, Y/n found the courage to venture on his own into the dungeon only to encounter a wounded spider monster. Y/n kindness lead to him helping the monster and in return it bite him, not trying to hurt him, but to bless him. After this incident, Y/n was given powers of his own and chose to use his new found gifts to protect the city of Orario.
Basically, the sin of sloth got transported to the world of demons, reapers, and angles by her littler brother greed. Let's see how sloth have a new eve by a demon butler.