Hakuyo Brewing Co., Ltd., located at 618-6 Shirogane, Kinko-cho, Kimotsuki-gun, Kagoshima Prefecture, Japan, was founded in Meiji 37 (approximately 1904). It stands as one of the historic traditional shochu distilleries on the Osumi Peninsula. The company steadfastly uses locally grown “Kogane Senkan” sweet potatoes as its primary ingredient, combining them with伏流水 (underground spring water) and unique distillation techniques to craft its signature premium sweet potato shochu, including the renowned ‘Maou’ series. Adhering to the principle of “quality over scale,” the brewery maintains its commitment to craftsmanship despite its remote location. Its rare style and artisanal approach have earned it immense recognition among shochu enthusiasts nationwide.