A hot new project focused on picking up elegant married women on the street is making waves. This time, the target is Sayaka, a 29-year-old math teacher. Hired by her husband to conduct an infidelity investigation, the plan is set: pick her up, seduce her, and lure her into sex. On the day of the operation, they spot her—innocent-looking with a childlike face, cute like a small animal. Exploiting her kind and trusting nature, they easily succeed in picking her up. They move to an izakaya, where they draw out her inner thoughts and frustrations. It turns out she's never kissed or had sex with any man other than her husband—a truly pure and innocent woman. But lately, her husband has grown suspicious of her, which has left her fed up. While she has no complaints about him as a husband, she's never satisfied sexually because he finishes too quickly. Though she lacks the courage to cheat, she secretly relieves her desires through masturbation and fantasy. Taking advantage of her vulnerability, the man forcefully takes her to a room and begins having sex against her will. Despite her protests of "no, stop," her body betrays her—her medium-sized nipples are already hard the moment her bra comes off. When he touches inside her panties, thick wetness gushes out, and as he moves his fingers, she squirts. Eventually forgetting her resistance, she passionately takes the cock deep into her throat herself. The man then delivers punishing piston thrusts, slamming into her repeatedly as she reaches climax with a dazed, blissful expression. It's obvious—his cock feels far better than her husband's. The pure wife writhes wildly with lewd, obscene movements, climaxing twice with creampie after creampie, her ecstasy so intense it's as if her husband doesn't even exist. This scene perfectly captures the overwhelming success of the so-called "infidelity investigation" project.