From the publisher's website:

Japan, 1605 – Hidetada Tokugawa has succeeded his father as the new Shogun, ruling from the great city of Yedo. This is the opportunity our clan has been looking for. Our chance at power and glory. Our clan will prove ourselves to be indispensable to the new Shogun. We will work from the shadows to acquire information about our rival clans. We will kidnap those who might oppose our ascent and assassinate those who prove a threat. We will use cunning to prevent our adversaries from doing the same to us. We will find glory and honor in the eyes of this new Shogun, or failing that we will end his rule by any means necessary. Boldness may win the day, but we must choose our missions carefully. In Yedo, eternal glory and painful disgrace are two sides of the same coin.