In a postapocalyptic future, a human girl and an android travel the world in search of a mythical utopia to protect those they love.

Roue, Chrome, and Rock receive an unexpectedly warm welcome in Heaven Land. When Roue asks if Zett can be revived, D and R agree, but on the condition that she sit down for a one—on—one conversation with each of them first. It’s then that Roue learns the truth about the war 200 years ago and of the two plans humans entrusted to D and R in their final days. After tirelessly fighting their way across the wastelands for so long, Roue and Chrome’s journey finally comes to an end in this captivating conclusion.