Four couples gathered online compete in an intense endurance contest, striving desperately not to get caught as they aim for the grand prize. Their agonizing attempts to hold back are vividly captured—knitting their brows, biting their lips, suppressing moans—portraying an unbelievably realistic struggle. Amidst it all, the delicate emotions of girls who feel pleasure but fear exposure are intricately depicted, making this a groundbreaking AV that pioneers a bold new genre.