Apparently, Kiyoshi Kurosawa, the director of the film, focus on expound the theme of the story mechanically, while structure of script is somewhat unsatisfactory.
In addition, Kiyoshi Kurosawa did not deal with relationship well between the personal expression and mainstream value.
However, because of veteran cinematography and proper performance, the executive ability of every single shot is very good. Therefore, in general, emotional expression is obviously better than the construct of world view in this film.
In other words, the hesitation of director stops the film from becoming a classic work, if he could make a more determined decision, it will turn into a better film.