japan is a part of the east asia cultural region. Japan has these 8 regions: Hokkaido, Tohoku, Kanto, Chubu, Kinki, Chugoku, Shinkoku, and Kyushu. japan's cultural region is samurai ninjas. 84% of the population observes both shinto and buddhism. Japan has 8 regions each having its own dialect, customs, and unique traditional culture.borrowed some cultural ideas from china.