Translated into English for the first time, this atmospheric black comedy tells the story of the Osugi family, who come to the sudden realization that each of them hails from a different planet: Father from Mars, mother from Jupiter, son from Mercury and daughter from Venus.

This extra-terrestrial knowledge brings them closer together, and convinces them that they have a mission: to find others of their kind, and save humanity from the imminent threat of the atomic bomb...