Yamaguchi Sake Brewery, founded in 1832 in Kurume City, Fukuoka, named the Niwa no Uguisu brand after a bush warbler from the nearby Kitano Tenmangu Shrine that reportedly visited the family garden well daily to drink its clear spring water during the Edo period's Tenpo era. The brewery focuses on Fukuoka Prefecture ingredients, primarily using locally grown Yamada Nishiki from Itoshima and the Fukuoka-developed Yume Ikkkon rice variety, and has shifted to pure rice sake as its standard since the late Showa period. The stated goal of the Niwa no Uguisu style is a calm fragrance and gentle umami that invites another pour.