Founded in 1971 (Showa 46), Onjika Sake Brewery is a cooperative established by small breweries in the Kanoya area of ​​Kagoshima Prefecture. Using high-quality sweet potatoes grown in the fertile soil of the Osumi Peninsula and groundwater gushing out from the Kunimi Mountains in the evergreen forest area, we produce potato shochu with a timeless flavor that is loved by locals. The brand name ``Kojika'' was chosen through a public recruitment process, and symbolizes the company's initial background as a gathering of ``small breweries within the jurisdiction of the Kanoya Tax Office.''