One day, while hurrying to a piano lesson, a girl named Saki bumps into someone on the street. As Saki regains her composure, the stranger picks up the sheet music Saki had dropped, hands it to her along with a band-aid, and continues on her way—all without uttering a word. Saki is left wondering about the identity of the tall, lovely stranger, only to discover the next day that she is one of her classmates at her new high school. The girl's name is Kanon, and though she is hearing impaired, she refuses any kind of support or "special treatment" from her teachers or classmates. Over the course of the year, Saki slowly grows closer to Kanon and begins to chip away at her cold exterior.