The secret treasure
The film is based on Yuhei Hata's award-winning novel "Honda's Foxes: Tokugawa Ieyasu's Secret Treasure (本多の狐 徳川家康の秘宝)" published by Kodansha in 1992.
The story takes place around the year 1620. It is about the search for a treasure of gold sought after by "Honda's Foxes", a group of ninja who serve Honda Masashige, an advisor to the Shogun. The Christian samurai Kamon and his female companion Oshiro are looking for another treasure of Tokugawa Ieyasu.
In this film adaptation, some personal names and names of sword fighting schools differ from the original.