Beach beauties drawing attention at Shonan's shores. This time, it's not just about regular swimsuits—enter a bold new project aiming to create the ultimate swimsuit, focusing not only on outer design but also innovative inner structure. Beautiful yet functional, these suits are engineered to stay supportive even if they come off at the beach, with wire lining that firmly holds the skin in place, preserving their allure. Women can confidently enjoy themselves without showing an unattractive side to the guys they like. Or so the invitation suggests—but this is actually the opposite of the true goal. The real objective? An erotic prank! As rewards keep rising, the women find themselves unable to back out. Gradually desensitized to shame, they become more aroused as the rewards grow. Our demands escalate as their humiliation deepens. One by one, they fall deeper into the trap. How far will they go? What kind of state awaits them at the end? This grand operation begins now! This time, meet Izumi, the girl who got most into the shoot. At first, even a simple swimsuit check made her slightly uneasy, but lured by the increasing payment, she slowly began to get excited. As our demands piled up, she sank deeper and deeper, reaching a point of no return. Then, gradually overtaken by the atmosphere, in the end…