Tsumugi Aoba and Sou Sakura dated in high school. They both liked music. After graduating, Sou sent her a message breaking up. She started dating Minato Togawa, a mutual friend. 8 years later, she sees Sou, only to learn he is deaf.

39-year old Sakura Toyama is a hairdresser and salon assistant manager, who is concerned by her stagnant life. She has just been passed over for the manager position, which has instead been...