In AD 2 13 1 year, a non-nuclear war left the earth in ruins. Mercenary soldier Du Nan Naz (Komatsu Yuka) and ex-boyfriend and partner Bree Aynos (Junichi Suwabe) are sent to the war-torn suburbs as survivors after the war. On duty, they met two people from a mysterious utopia. Aerith, a resident of Olympus, is actually an artificial man and Olson.

Aerith (Aoi Yuki) and Olson (Hiroki Takahashi) may have a way to save the world, but ruthless talos and scheming warlords have their own plans. Denan Knut and Briarios must protect their new allies to save the last hope of mankind.