The Razor ("Goyoukiba") takes place in Edo, Japan, sometime during the middle of the Tokugawa Era (approx. 1603-1868, also called Edo Period), the period named for the 15 generations of Tokugawa Shogun (Military Overlords) that ruled the nation, maintaining a relatively static society, for over 250 years. This period of military-rule is characterized by its relatively peaceful order overall, clear division of the social hierarchy, extravagance by the privileged classes, isolation from the West, a lot of convoluted treachery, and many important cultural and intellectual advances.