Set in a world where the concept of music ceases to exist. The story begins when a boy encounters Myuu, a mysterious girl who possesses an audio input jack in her body. The two intermingle with the history of rock music and embark on an unforgettable journey. (Source: MAL News) Set in a world where the concept of music ceases to exist. The story begins when a boy encounters Myuu, a mysterious girl who possesses an audio input jack in her body. The two intermingle with the history of rock music and embark on an unforgettable journey. (Source: MAL News)