There is a well-known roleplaying game called Legend of the Five Rings, published by Alderac Entertainment Group. It focuses on the fictional, Japanese-like nation of Rokugan, also called the Emerald Empire. Rokugan is ruled by an Imperial monarch and a samurai caste divided into clans and families. A player character usually is a samurai who belongs to a school that trains bushi (armed warriors), shugenja (priests who invoke the power of spirits in order to perform magic), or courtiers (who are involved in politics by attending the court of the ruling Emperor or a high-ranking samurai).

Never heard of it.