Description：On the surface, Oshima Shino (Minami Sara) is a very cute ordinary girl, but as soon as she opens her mouth, her severe stuttering will expose her flaws. Because of her stuttering, Shino has often been bullied by classmates since she was a child. She has lived in ridicule and discrimination for many years. Even teachers sometimes hurt her fragile heart unintentionally. By chance, Shino met a girl named Kayo (Maita Ayaka). Kayo is a child who loves singing very much. Although she is tone-deaf, this can not extinguish her passion for music. After listening to Shino's singing, Kayo invited Shino to form a group with her to participate in the competition held by the school. Although Shino speaks intermittently, her singing is extremely beautiful. With her singing, Shino began to gradually change the attitude of her classmates around her towards her.