AllMovie

In the 20th century, there was a war between humans and monsters. Humanity only prevailed as a result of the Meros Warriors. These fierce fighters who battled the demons were and the only people on Earth who could hear the Melody of Oblivion, the song of a phantom girl who awaits rescue by the prophesized savior of man kind. Young Bokka is extremely interested in the Meros Warriors, and soon, he finds that his connection to the Meros is more than just a hobby. He finds himself embroiled in a battle, fighting alongside real life Meros Warriors, and more importantly, he hears the melody.