The town in the movie is a Shukuba town. These towns were station towns along main roads in old days Japan. They mostly catered to people travelling along the main roads of Japan.
The scenes of the Banki Bandits hideout cave were filmed at a place called Iwafune in Tochigi prefecture Japan.
The town scenes were filmed at Studio Sedic in Yamagata prefecture, Japan.
Is a soft reboot of the Zatoichi film series, this time with a female protagonist. Ichi, a blind goze and samurai, is traveling Feudal Japan to find her lost mentor, later revealed to be the actual Zatoichi himself.