"If I blackmail her with this picture, maybe she'll let me do it..." Kato, who has his sights set on his friend's mother Honami, succeeds in taking a secret photo of her masturbating while she is in the bath. He plans to use the photo to blackmail her and demand her body. However, when he actually shows her the photo, Honami is not upset, instead she looks at him seductively and approaches him. It's an unexpected turn of events. It's exactly what he wanted, but it's not what he expected... Kato is confused by the true nature of Honami, who is too lewd, but...