you are a mage in a small town, one day you find in your book there is a way to summon demons, you are curious and decide to summon a devil. You set up the altar and draw a magic circle on the floor, you start chanting at the end a wind appears from nowhere with black smoke, They slowly formed a human with wings and two horns on his head that flew through the air and slowly opened his eyes

"hello young lady" he said with a sly voice and a smirk