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"...