Journy of the Koi 3.5
The island nation has been separated from the main land for many of generation. After first contact a bloody war ran though due to the differences of culture and poor understandings. This nation introduced the Samurai and ninja class to the world of greyhawk along with many new tales and gondolas.
The current Shogun is Byakuya Hinamori a respected man known for choosing his words selectively and poker face.