Shinpachi, the son of a sushi chef, is busy preparing mysterious fish for the local customers. Haruko disguised as a hostess, visits the restaurant with the mayor, followed by a Medical Mechanica robot who threatens to destroy the planet.

Orinoko's father is a swordsmith, whose skills have rusted with the devastation of the city. In order to help, Orinoko rummages for scrap irons, and she meets Haruko who's also collecting irons to repair her Vespa, but what is her motive?