The government of the shogun, the shogunate is currently based in the Isles of Silk and Spice. The shogunate is a military dictatorship, with absolute authority vested in Yoritomo, the Mantis daimyo. Yoritomo views it as a form of regency, or stewardship. He is simply acting in the Emperor’s stead until such a time as a new Emperor can take the Emerald Throne. Yoritomo refuses to acknowledge Kisada I as Emperor as Fu Leng has been the enemy of the Empire since it’s founding.
The shogun himself is a man with little patience for the details of Empire and leaves a lot of the running of the shogunate to his hatamoto, in particular Bayushi Amoro his adopted son. Amoro is loyal to his adopted father above all else and takes much of the intricay of court in his stride. Yoritomo is heavily involved in military planning and strategy in the ongoing war and as such he knows much of the details of the disposition of the fleets and armies.