When Chihaya Ayase was in the 6th grade of elementary school, she met Arata Wataya. Arata Wataya transferred from Fukui Prefecture. Taichi Mashima was Chihaya Ayase’s friend since they were little. Arata got close to Chihaya and Taichi from the card game karuta. Four years later, Chihaya is a high school student. Chihaya learns that Arata, who went back to Fukui Prefecture, doesn’t play karuta anymore. Believing they will meet Arata again, Chihaya and Taichi starts a karuta club at their high school.
After successfully won the Tokyo qualifying tournament, Chihaya and her friends are set to go on to the nationals. As they prepare, Chihaya is faced with new personal issues as her childhood friend and inspiration, Arata, has announced that he has quit competitive karuta. Not only that, but a new rival emerges in the reigning female champion karuta player, Shinobu Wakamiya, a karuta prodigy who became the nation’s and the world’s greatest female karuta player as a 9th grader. All of this forces Chihaya to reexamine her love of the game in the midst of preparing for one of the biggest tournaments of the year.
Set within music field, this film depicts a love story between a 25-year-old sound engineer and 16-year-old high school student Riko, who posessess a gifted voice. 25-year-old sound engineer Aki is a member of popular band “Crude Play,” but right after the band decides to make their major record debut Aki quits the band. But, Aki provides his music to Crude Play under the name of producer Soichiro. Aki begins to date Riko, whose father runs a fruit and vegetable shop. Riko doesn’t know about Aki’s background, but she likes to listen to him hum. Riko is in a band herself, with childhood friend Yuichi and Sota. One day she is scouted by producer Soichiro.