Nestled in the northernmost part of Gunma prefecture is Nagai Brewing Company. Nearby is Oze National Park, the most beautiful high-altitude marshlands in Japan. Snow and rain slowly filter through the highlands, taking decades to reach the springs at Kawaba, a small village with a little over 3,000 in population. Back in 1886, Shoji Nagai first fell in love with the quality of water there and started brewing sake. Today, the brewing company aims to combine the nature, culture and history of Kawaba village, and to pass down their ancestors’ philosophy and skills, which they call Nagai style.