Shôji Ishibashi

The director takes a very serious subject - the return of Okinawa to Japan from American control - and gives it a pop, almost parodic feel, with a floating camera and free-form narrative.

The Shiranui Clan have planned for 2000 years to conquer Japan in retaliation for their nomadic ancestors being banished from the country by the Yamato Clan. Each armored ninja-like member of the clan controls a gigantic robot warrior in order to overthrow the "Yamato Government," as they call it. In response to this terrorist threat, Japan's National Security Organization send agent Gentaro Shizuka, disguised as what can best described as a Spaghetti Western version of a singing cowboy... (wikipedia)

A man meets a girl in the city. He falls in love with the chick. She claims she has fallen head over heels for him. She moves in with him. Returning home one day there is a man in their room. The man is lying down. He tells them he is an insurance salesman and he has stomachache. He has made himself at home. The three become room-mates. (imdb)