A hearing-impaired woman with dreams of becoming a professional boxer due to the pandemic is threatened closure of her boxing club and the illness of its ageing president, who has been her biggest supporter, push her to the limit.

Only three days before their high school festival, guitarist Kei, drummer Kyoko, and bassist Nozomi are forced to recruit a new lead vocalist for their band. They choose Korean exchange student Son, though her comprehension of Japanese is a bit rough! It's a race against time as the group struggles to learn three songs for the festival's rock concert—including a classic '80s song by the Japanese punk rock band The Blue Hearts called "Linda Linda".