A family descended from Sen no Rikyu that transmits the tradition of Sado (The Way of Tea). It is one of the three Sen families. The family estate was inherited by Koshin Sosa, the third son of Rikyufs grandson, Genpaku Sotan. Fushinfan is the representative Omotesenke tea house and the word is also used to mean the Iemoto. Each generation of Grand Master takes the name eSosaf, and the present Grand Master, Jimyosai Sosa, is the fourteenth in line.