Sounds like yet another vehicle of historical bullshit sung to the same old tune of Sweet Sweetback's Badasssss Song.
Samuel L. Jackson just described
Django Unchained on Letterman's show as "Shaft on Horseback."
I wasn't previously aware that Miike's movie from a few years ago,
Sukiyaki Western Django (which Tarantino was also in), was a remake of a series of spaghetti westerns from the 60's. This is another case, like
Inglorious Basterds, of Tarantino lifing a title and a general theme then just meandering off on his own tangent.