Rina deeply admired Mizusawa, a martial arts instructor. One day, upon hearing he had gone missing during an undercover investigation, she resolved to search for him alone. But what awaited her was a relentless assault by a group of highly trained men. Bravely fighting back, Rina is gradually overwhelmed... until she's subjected to a humiliating gang bang in front of Mizusawa. Forced against her will to take drugs via injection, her body—drenched in sweat, tears, saliva, and obscene fluids—is pushed into further torment. Beyond that lies a danger beyond imagination.