Kozan Yaki, a ceramic tradition from Amakusa, Kumamoto, began in the mid-1800s as "Hirose Kameya," producing utilitarian wares. After an industrial era, it pivoted to diverse appreciation ceramics in the early 1900s, being renamed Hirozan Yaki in 1922. Unlike traditional kilns, its aesthetic remains deliberately unfixed, embracing varied ceramic expressions through diverse glazes (celadon, iron, ash) and painted wares. This approach values individual artistry over a unified kiln style. Even after a kiln relocation in the 1950s, this continuous evolution defines its unique charm, representing a compelling trajectory from utilitarian origins to a vibrant platform for individual ceramic artistry.