The provided information, limited to the title, director, and cast, is insufficient to determine the film's central subject matter, themes, or narrative focus, making an assessment of political bias impossible.

The film features a Japanese director and an entirely Japanese cast, which is considered neutral within the provided DEI framework that primarily addresses Western 'traditional' casting. However, there is insufficient information regarding the movie's narrative or themes to evaluate its portrayal of traditional identities or DEI concepts.