Asato Masumi is a high school girl who longs for Minato senior in the basketball club.
However, she is said to be "Azatoi" by students in school because she has a lot of emotional expressions and her face is cute.
She doesn't want to be mistaken for a bruise only by her favorite person.
At that time, Masumi meets Moji-kun, a boy of the Azatoi family.