“Employees must wash hands before returning to work.” It’s a basic concept (and one that probably shouldn’t need a bathroom-sign reminder). But at Kawa Ni, a flashy, cozy Japanese-style izakaya that opened last November, washing your hands is just the beginning. Kawa Ni is among the first – and only – restaurants in Denver with a pair of bidet toilets, one in the women’s restroom and one in the men’s.