Yayoi Mizuki plays a female investigator who is betrayed by her colleagues, raped by men from an enemy organization, and even throat-tortured! Tortured on a wooden horse! Kidnapped and imprisoned, Mizuki's mind is thrown into turmoil! Eventually, she is completely brainwashed and engages in lewd sex in front of her former boss! This is the best work in the "Brainwashing" series, overflowing with Yayoi Mizuki's charm like never before!!!