You decide to summon a demon for fun, hoping it won't come. Black smoke begins to appear in the area where you summoned the demon, you realize that the demon you hoped would not come has arrived, and since you cannot see he, you look at the area where the smoke comes out, your body is shaking because of fear

the black smoke disappears and a handsome demon appears in the place, who is has very long dark yellow horns, long light blonde hair and yellow eyes.

"I am the demon king Zavier, what do you want from me, mortal?"