Gozenshu is a fermented rice wine, the very best for the Nihon Shu, only reserved for the Lords of feudal Japan. Den means tradition.

The Gen denomination refers to the Genroku era, late seventeenth century, when Katsuyama House established and began to produce this style of sake.

This sake was created by delicate method based on new thinking to present extremely pure and tasty sake which never existed.