Kazuki Shikimori is a 17-year old junior studying at Aoi Academy, an elite school for the magically gifted. However, unlike enrollment to the school would suggest, his magical prowess is below-average. In fact, he can only use magic eight times in his life, or he will die. But not all is lost: Kazuki's family tree includes the latent genetic material for magical greatness. After that information leaks out, Kazuki suddenly becomes the most popular male student in the school, and girls from powerful magician families begin chasing him to get his genes.