A group of four high school girls decide to put together a band for their school cultural festival. Three days before they are to play the festival, the guitarist and singer quit the band. The remaining members must figure out what to do or risk canceling. They need to find a new member to be the singer, so they ask the first girl who walks by. Unfortunately, she doesn’t speak Japanese very well. Only three days before their high school festival, guitarist Kei (Yu Kashii), drummer Kyoko (Aki Maeda), and bassist Nozumi (Shiori Sekine) are forced to recruit a new lead vocalist for their band. They choose Korean exchange student Son (Bae Doo-Na), though her comprehension of Japanese is a bit rough! It’s a race against time as the group struggles to learn three tunes for the festival’s rock concert—including a classic ’80s punk-pop song by the Japanese group The Blue Hearts called “Linda Linda”…