Wishing to compose a song for her idol, Hayato, to sing someday, Haruka enrolls into Saotome Academy. Prior to her enrollment, Haruka has no experience in reading sheet music despite being able to play the piano.
She learned to play the piano from her grandmother, whom she lived without in the country due to her poor health. She at times feels unconfident in her musical abilities, because she has had no formal training. However, despite her disadvantages, she overcomes them with a positive attitude, hard work, and perseverance. Ittoki Otoya, Shibuya Tomochika, and Shinomiya Natsuki are the first people to make friends with her in episode 1. She later on in episode 3 finds Hijirikawa Masato to be a reliable understanding friend.
