The story follows Unoshin Mizuno (played by Kazunari Ninomiya), a young and noble samurai from an impoverished family. Desperate to support his family and escape being married off for money, Mizuno enters the Ooku , or "Inner Chambers," of the Shogun's castle in Edo. In this hidden world, 3,000 beautiful and ambitious men compete for the affection and favor of the female Shogun.

I see you're interested in discussing the 2010 Japanese film "The Lady Shogun and Her Men" (also known as "Ookami Shougun to Goemon"). Here's some information about the movie:

The story follows (played by Kazunari Ninomiya), a skilled young samurai from a poor family. To save his family from financial ruin and escape a forbidden love with a merchant's daughter, he enters the O-oku. The Lady Shogun and Her Men (2010) - Plot - IMDb

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