From the back of the book:
"Ancient Japan has held a long fascination for the west. The formality of the society, steeped in notions of honour and debt almost unheard of in the west; the traditions of the samurai and their code of bushido; the enigmatic ninja and duality of the Shinto and Buddhist religious philosophies - each contributes to a unique society that is ideal for adventure on many different levels.
This book assumes the reader is new to historical Japan, although those with knowledge of it through popular mediums and historical research should not find it wanting. Within these pages you will find everything needed to create an authentic sense of mythic Japan using the Legend rules system."