A drugged up and bored man watches as the strongest detective, Nanao, endures humiliation after another until he breaks her pride! Desperate to save his precious sister, she embarks on a solo undercover investigation... but ultimately falls into the hands of a man holding a grudge against her. As he forces her to perform sexual acts, her pride crumbles before our eyes. "I absolutely won't do anything like that!" → "Stop it! You're making me cum!" Her days filled with being used and forced to orgasm in front of her helpless sister, all while maintaining an act of defiance – this is the ultimate degradation and submission!