Against the backdrop of a changing world, a tender romance between human and machine forces society to question the very essence of love, consciousness, and the bonds that make us human.

Two children who got swapped at birth grow up to become engaged to each other. It's an arrangement neither of them like, at first.

As a prophecy of doom unfolds on the peaceful land of Britannia, a purehearted boy sets out on a journey of discovery — and revenge.