Aya Nikaido, a young lady in a box, is targeted by her father’s hostile organization. It is a sneaky thing to train Aya who is still innocent and does not know much about sex to a nympho meat guy ● and use it for negotiations as a hostage. He inevitably resists, but eventually realizes that his anus is terribly sensitive. In response to a number of overwhelming torture, it is remodeled into de M. A neat and weak girl like an angel transforms into an incubus. [* The image and sound may be distorted, but please note that this is not a defect of the product itself.]