I'm used to seeing Japanese movies which are way over-the-top and crazy. I'm thinking of Machine Girl, Prison School, Battle Royale, etc. But some of their movies are sort of a documentation of Japanese history and culture. This one was presented with both a sense of drama, and a sense of humor. This movie is high quality. I gave it only six stars; because I rate movies on how much I enjoyed them, not on their perceived quality. Seen on Tubi, the free streaming site.