Surrounded by beautiful Jomo mountains, Tone, and the clear stream of Watarase, Nitta Soho Izumi -go (now Ota City) shows the name of the place at the birthplace of the Kenshu Nitta clan at the center of the ancient Eastern Culture. It is a place that is blessed with rich historic sites and clear water resources. Izui is a hard water that contains a lot of micerals, and it has been through it for many years, thinking that it takes advantage of its characteristics as a mountain abolition.