You're a second-year high school student at Nijigasaki High School in Odaiba. You go with your classmate and childhood friend, Ayumu Uehara, to Akihabara to hang out. When you arrive…

By chance you see a broadcast of μ's and Aqours performing together on one of Akihabara's big screens. Your first look at a school idol performance leaves you stunned by its shining glamour.

You can't get the μ's and Aqours performance you saw with Ayumu yesterday out of your head. You search all around the school grounds, thinking there just might be a school idol at your own Nijigasaki High too.

Indeed, there was a school idol at Nijigasaki High! Kasumi, sitting all alone in the clubroom, asks you to help her keep the School Idol Club from being disbanded.

In a fit of passion you go to the student council president about the club being disbanded, and she gives you an ultimatum for its continuation. Forced to find 10 members for the club, you ask Kasumi how things got like this.

Hearing Kasumi's passionate speech, you decide nothing will stop you from saving the School Idol Club. You rush to the person you trust most as your first step in finding the 10 members the student council president stipulated.

Having secured Ayumu's place in the club, you and Kasumi head to persuade Shizuku, who left to join the Theater Club. Shizuku performs magnificently in the theater's spotlight, but what are her true feelings?

Shizuku, wanting to continue as a school idol, returns to the club after training her expressiveness through theater. The next person you go to recruit is someone who truly stands out at Nijigasaki High School: Ai!

Ai joins you in hopes of having some fun, and gets her first-year friend Rina to tag along, too. Your next hopeful is former School Idol Club member Kanata, but there's a reason she left the club.

The members of the School Idol Club now see a thread of hope with the return of former members Kanata and Emma. Your next hopeful is Karin, a popular amateur magazine model! However, she has a very particular stipulation.

With Karin having joined, the Nijigasaki High School Idol Club's goals and how you'll reach them are coming together! You then seek out the most radiant former member, Setsuna, but you can't seem to find her no matter who you ask.