피바다
The most famous North Korean revolutionary opera, "Sea of Blood", dramatizes the struggle of a Korean mother and her family in Japanese-occupied Manchuria in the 1930s, where Kim Il-sung was a guerilla fighter. The family is subject to many horrors under the Japanese regime, before they finally join the Communist revolution and destroy their oppressors. The title refers to the actions of the Japanese army which the hero describes as having "turned the country into the sea of blood".