This is a series of sake brewed around a theme, originating from Mutobe, Fukuchiyama City. The brewery is located in the Mutobe area of Fukuchiyama City. The sake is made with Mutobe rice, Mutobe water, Mutobe climate, and Mutobe people. The name comes from the "six" in Mutobe and the brewmaster's desire to create a sake that delights the drinker's heart (sixth sense), beyond the five senses. The brewery decides on a theme first, then designs the label, then designs the sake's quality, and finally decides on the specific designation.