OTOKOYAMA Sake Taste of Japan A high quality sake backed dy 330 years of tradition------Otokoyama Hokkaido, Japan's northernmost island,has ideal climate and water conditions needed to make superior sake. Otokoyama brews high quality sake on the island. International Habitual Drink Sake developed with the history and tradition of Japanese food culture. OTOKOYAMA has introduced Japanese heart and taste to the world.