Shizen Hakkougura, or 自然発酵蔵, translates to Natural Fermentation Brewery, named after its flavour that makes you feel the vitality of nature.

"Amousui" is water that springs out after hundreds of years from Amoutou Pass, which is said to be "the last unexplored region of Hida" on the border of Hida and Shirakawa-go. There are many legends about this "heavenly water", among which there is a story that long ago, a monk in training drank and bathed in the spring water, which gave him supernatural powers to heal all sorts of illnesses. Unlike normal brewing water, natural water is hard water with a high degree of purity, and has an extremely strong natural fermentation power. It gives sake a crispness.