This role-playing game, designed by Robin D. Laws, is designed to emulate many of the genre conventions of the Heroic Bloodshed, Martial Arts, and Wuxia sub-genres of the Hong Kong Action film industry.

The game's setting itself is based around a secret war over the control of Feng Shui sites. A person or organization who controlled enough of those sites would be powerful enough to shape both the past and present, and control the control of magic in the world.