Not I. At first I wondered if it had any connection to natto, that foul concoction, but further research seems to indicate that it does not. And, speaking of Scrabble words (as I was yesterday), this would make another great one.
a. The dark red edible beans of the annual leguminous plant Vigna angularis, cultivated in China and Japan; the plant itself. b. attrib. in adzuki bean.