A natural-born femme fatale, Matsudaira Yurika repeatedly commits marriage fraud using fake names. Using her stunning beauty and seductive body, she continues to swindle money from her victim, Sasao. However, when Sasao grows suspicious of her behavior, he hires private detective Sawada to investigate her background. Sawada thoroughly tracks Yurika's actions, and upon uncovering her vicious nature, smirks quietly to himself: "Now this is quite the prize (laughs). I'll make sure she's completely broken—never again will she use her cunning against anyone."