Modern Lady Gambler (1972)

Original title: 昭和おんな博徒

Fujiko wanders aimlessly through the country, seeking vengence on the man she onced loved, who betrayed her, and destroying her family and her life. When she discovers that man had already died, she loses her will to live. But in a twist of fate, she meets Tatsumi, a raising star in the Horikawa Family. She quickly falls in love with him and his yakuza lifstyle. But when Tatsumi is chosen to but the next Boss of the family, his jealous sworn brother Morito kills him with the help of a mysterious man behind the scenes. Now Fujiko becomes a Bakuto, a wandering yakuza gambler, and once again, walks the bloody path of vengence...