The Hidden Blade
隠し剣 鬼の爪 (original)
Munezo Katagiri (Masatoshi Nagase), an honest and low ranking samurai is trapped in a state of personal and professional imbalance. Munezo knows that he cannot beat his rival with alone, so he enlists the help of his old teacher and the secret and power of the Hidden Blade.
Starring Masatoshi Nagase, Takako Matsu, Hidetaka Yoshioka, Yukiyoshi Ozawa, Tomoko Tabata, Chieko Baisho, Kunie Tanaka, Sachiko Mitsumoto, Reiko Takashima, Nana Saito
Watch "The Hidden Blade" from streaming services Tubi TV, Hoopla, Kanopy released in 2004. It's a drama and romance movie, and has a rating of 7.7 out of 10 from Imdb which is usually fine for this kind of movie.