Here, I thought about the common points between "Kumihimoya no Ryu" and "Otojiro".

I thought Kyomoto and Satomi had similar facial atmospheres, and I felt that Satomi's eyes looked brown, probably because of the lighting in the play.

Other than that, I thought it was a feminine look, a beautiful flow, and a powerful sword technique.
Since Ryu is Kumihimo, I can't confirm the sword scene, but I would like to introduce "Shino Inuzuka" from the movie "Legend of the Eight Samurai" and its role.
This movie is a fantasy movie that was also released in Taiwan.
Shino and his sister-in-law, Hamaji, secretly thought about each other, but their fate was very sad and ephemeral.
The leading role, Shinbei Inue, was played by Hiroyuki Sanada. Along with the heroine, other comrades are also led to fate.
The relationship between Shino and Hamaji is very impressive, with compassion and deep affection, and I love their characters.
This work is a movie adaptation of "Shin Satomi Hakkenden", which is a translation of the feature-length novel "Nansō Satomi Hakkenden" written in the latter half of the Edo period.