The third-year students of Shibazaki High School will welcome the last cultural festival of their high school years in three days. The girl band of the light music club has signed up to perform during the cultural festival, but the internal changes have occurred. Guitarist Rinko accidentally breaks her finger while playing basketball; vocalist Rinko quits the band after a fight with keyboardist Megumi Although the bass player Nozomiand drummer Hirokohave not left, the band is still short of people. Hye didn't want to give up the opportunity to perform, so she borrowed a guitar from Hao, took charge of the guitar herself, and hired Song, a Korean student, to be the lead singer of the band.
When looking for a song to sing, Hui accidentally found "Linda linda linda" by THE BLUE HEARTS and decided to sing their song. The school's music department had limited rehearsal time, so Hui found her ex-boyfriend and took the band to borrow his music studio for rehearsal. At night, they went back to the school's music department to practice hard, and the friendship between the four girls gradually deepened.
On the afternoon of the official performance, they fell asleep in the studio due to overnight practice, and unknowingly missed the performance time. When they arrived at the stadium in the rain, they found that the auditorium was full due to the heavy rain. A song "Linda linda linda" brought the atmosphere to a climax. The four girls smiled and nodded at each other. Song picked up the microphone and sang the "Never Ending Song of Youth" by THE BLUE HEARTS
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