Nippon jokyô-den: Gekitô Himeyuri-misaki

(...) Junko [Fuji] is a boss not over gamblers but this time of a trucking company. (...) She has run-ins with evil yakuza (& is aided by the standard "good" yakuza played by rawboned Bunta Sugawara) during the American occupation of Okinawa, an unusual time & setting for the ninkyo or chivalrous brand of yakuza film. Her hometown is threatened by usurers, gangsters, & indirectly by American GI influences. She must go with her employees to help settle things, ultimately with violence. (weirdwildrealm.com)