Rika Kinjo, a new investigator in the NSI Special Investigations Division, raises doubts with Mishima, the head of the department, as to why Tsujimaru of the Female Torture Research Institute's death has not yet been confirmed, even though it has been officially announced. This is because, after the Women's Research Institute's hideout was blown up and Tsujimaru was thought to have died, a large number of brutal rape cases of women occurred at the perfect time. With her strong will, she desperately fights against the new forces of female torture. Will Rika be able to get closer to the truth?