Karen (かれん) is a brand produced by Oumon Shuzo, a brewery with over 200 years of history in Shibata City, Niigata Prefecture, known for its characteristic gentle sweetness rooted in the region's sake climate and water. Designed as an introductory sake with low alcohol content and pronounced acidity, Karen targets a younger generation and those new to sake, with a refreshing apple-like character and clean rice finish. The parent brand Oumon maintains a dry, refined profile, while Karen was created to broaden the brewery's reach through trade events and tasting corners both within and outside Niigata.