Christina, on arriving in Japan, acquaints a Japanese man at the airport who looks like a sap. He takes her to his apartment where he brutally rapes her and keeps her hostage and bound in chains. Christina's alluring beauty eventually enchants the rapist and he is soon consulting his 'How to Stimulate a Woman' sex book in an effort to please her...

Japan, 1860. The men of the Mito clan, victims of the Ansei purge, anxiously prowl around the Sakurada Gate of Edo Castle with the intention of assassinating Naosuke Ii of Hikone, tairō of the Tokugawa shogunate and responsible for their misfortune.