Kunpeki Brewery, located in Konan City, Aichi Prefecture, is a historic sake brewery founded in 1915. Its signature label is "Kunpeki." The company president also serves as the master brewer (toji), crafting each batch of sake with great care and attention, though in limited quantities. The brewery uses pure water from the Kiso River, known for being soft yet rich in minerals—ideal for producing smooth, well-balanced sake. For rice, they carefully select high-quality varieties such as "Yumeginka" from Aichi Prefecture and "Yamada Nishiki" and "Omachi" from Okayama. These finely polished rice grains bring out a rich, full-bodied flavor with depth and complexity.