Shoujo ni Nani ga Okotta ka

Upon her mother's death, Nogawa Yuki, who grew up in a fishing village in Hokkaido, goes to Tokyo to ascertain her birth secret, and aspires to be a pianist while searching for proof that she is indeed the daughter of the late brilliant pianist, Azuma Yukihiko. The cruel treatment by the Azuma Family who are convinced that she's after their fortune and their burning jealousy once they find out she's a gifted pianist, the fierce battle with Mitsuko, the daughter of the Azuma Family, for the grand prize at the piano competition, the outcome of her romance with Professor Otsu who discovered Yuki and her talent. And who is the mysterious man who supports Yuki from the shadows? A Cinderella story that depicts how an ill-fated young woman finds out the secret of her birth until she finally finds happiness after overcoming various obstacles.