Narumiya Azusa has always been known as the younger sister of Narumiya Mei. However, she is tired of living in his shadow, resulting in her shocking decision of going to Seido High School to be a manager instead of following him to Inashiro. Azusa is determined to prove to Mei, and most importantly to herself that she is more than a shadow. Now, if she can get a certain catcher to see it too, it would be the cherry on top.