Otonokizaka Academy is an old traditional school located between the towns of Akihabara, Kanda, and Jimbocho. One day, the terrible news came that the school is closing due to low enrollment!

 

Oh no! What's a girl like Honoka, a second year student at Otonokizaka, to do about this? She decided to become a school idol, make the school famous and thus have more students want to apply! Thus began the journey of 9 girls on the greatest adventure of their lives!