Legends of the Poisonous Seductress: Vol Two: Quick-draw Okatsu (1969)

Okatsu is played by the same actress (Junko Miyazono) that played the lead role in Female Demon Ohyaku (1968), and they even share some backstory, but there are differences that make it unclear if we're supposed to connect them in any kind of more meaningful way.
Vol Two is more cinematic and better edited than its predecessor. There's also more swordplay, so it's a lot bloodier.
Tomisaburo Wakayama gets an opportunity to show his skills. Could he do that stuff in real life? He sure seems like he could.
There's a watchful moment at a brothel that reminds very much of Rear Window (1954).  From the other perspective, Okatsu is a clear influence on the Lady Snowblood (1973) film that followed a few years later.

4 ugly truths out of 5