Ooshima Shino is a 1st-grade high school student. She has difficulties pronouncing words that start with vowels in front of people. Because of her speech impediment, she does not get along with others. Shino meets Kayo who likes music, but she is tone-deaf. They decide to start a band and Shino begins to change.
| Actor | Role |
|---|---|
 Sara MinamiOoshima Shino | Ooshima Shino |
 Aju MakitaKayo Okazaki | Kayo Okazaki |
 Riku HagiwaraTsuyoshi Kikuchi | Tsuyoshi Kikuchi |
 Maika KoyanagiNot listed | Not listed |
 Akana IkedaNot listed | Not listed |
| AAkari KakimotoNot listed | Not listed |
| MMayu NakataNot listed | Not listed |
 Jun AonamiNot listed | Not listed |
 Tetsu WatanabeNot listed | Not listed |
 Kinuo YamadaEtsuko Ogawa | Etsuko Ogawa |
 Kaoru OkunukiYumi Ōshima | Yumi Ōshima |