I agree with the positive remarks left by others about the overall charm of this movie, but the real treasure is actor Mikio Narita (January 31, 1935-April 9, 1990.) He was one of the better character actors of his generation, which is obvious when you compare this performance to his portrayal of an effete imperial minister, who happens to be deadly with a sword, in "Shogun's Samurai", a/k/a "The Yagyu Clan Conspiracy." As Jumonji, Narita borrowed Sam Spade's unique gesture from "The Maltese Falcon," that is, when contemplating a problem, he rubs the side of his nose and then snaps his fingers when inspired with a solution. The script gives him plenty of opportunities to emerge as a full and unforgettable character, and his presence in this episode of the Zatoichi franchise is reason enough to see this film.