Lupin's friend, the samurai Goemon Ishikawa, takes a job as bodyguard for a yakuza boss. But a brutal assassin kills the yakuza and Goemon is honor-bound to track him down.

A young boy with silver hair is shocked and frightened when a group of mysterious men burst into his home and kidnap his mother. That same day, a handsome young mail man with similar silver...

In a time of war two countries fight for their own ideals using any means necessary. Susumu Tokimune is a new recruit who in his first battle encounters an engineer with a new machine called Argevollen, which will hopefully bring peace.