Legend tells of a secret army, the Amen Osa, the phantom master. Hidden warriors waiting to strike from the shadows to protect justice and defend the Jushin Empire from tyrants thieves. But Jushin has fallen, and its citizens live in fear of zombies, beasts and sadists. Now from the ashes of destruction, a hero appears to defend the people. His name is unknown, and no man knows who serves. Is he the last of the Amen Osa? The answer will be revealed when the blade of the phantom master is unleashed.