Based on actual events that occurred in Hokkaido, Japan, 1915. Rimeinzu: Utsukushiki yuusha-tachi tells the story of a group of bear hunters that are tracking a 900 pound brown bear nicknamed Red Spots that is terrorising the area. It attacks and kills men, but it feasts only on women.
The female ninjas need to protect their particular master's unborn infant from enemies. They use all types of intimate tricks to obtain the work done.
The government is worried that the Emperor will have no children because he can’t get an erection. The female ninjas try to find a sacred book that will help him, but they face a stiff challenge.
