Many years after a destructive war between man and monster few people remember that mankind's saving grace was the phantasmic girl known as the Melody of Oblivion. A young man named Bocca becomes curious about the strange disappearances and sacrifices that no one seems to speak about or take notice of. His interest is further piqued when he meets one of the Melos Warriors a group of fighters who defended mankind against the monsters during the war. With the knowledge that another war is brewing Bocca sets out to find the Melody of Oblivion. VOLUME 3: METRONOME contains several more episodes of the anime fantasy. In these episodes Bocca and Sayoko find that each new town has its own set of problems. In the midst of looking for the Melody of Oblivion and Kurofune the duo attempts to solve a chain of mysterious hijackings and gets in deep waters. In this battle with the monsters the gang may have to say to goodbye to someone close to their hearts.