There’s two types of special statues in the Shogunate International Organization: the Sugo and the Emperor (or Emperors in this case, more on that on Friday). The Emperor is the one that is “technically” the ruler of Japan (although the one actually in charge is the shōgun), while the Shugo are provincial governors, giving them some nice bonuses.

There’s an action for the shōgun to either grant or revoke the governorship of a province, while the individual clans also have the option of basically becoming a de-facto shugo if they manage to establish enough presence in a particular province.