In a world where humans have various abilities and coexist with various races, Kale is a boy who has been treated as a dropout because of his incompetence. At one point, by becoming a vampire genus, Kale awakens to the strongest incompetence !! Its power adapts to the characteristics of any subhuman, and while being a genus, it exerts more power than the Lord. It was the ability to become the "strongest genus" !! Various races started approaching Kale who suddenly began to attract attention- "You have the potential to become the king of all races" The weakest incompetence is the strongest The school's unique fantasy that transforms into an opening !!