1200 BC A time when God was still demonstrating his powers and making his presence felt to those in the world and people lived simply in small communal groups. One of these hamlets was that of Will Arc. But when the village chieftain Martha refuses to be sacrificed to God, she throws the future of the village into uncertainty. When Martha realizes that she is at death's door, she leaves her son, the Great Swordsman ALES with her last wish before passing away. In order to convey Martha's final words, ALES strikes out alone on a quest for Will, a girl known as "The Song of God".