Her older husband's libido had decreased more quickly than she had expected. She had known about it, but Reina couldn't bear it. Is there any way to satisfy this dry body? After much deliberation, Reina makes a move on her adoring son. It'll be fine for now. That was what she had planned, but now she can't let go of her son's stiffness. She wants to feel even better with him... Reina's desires grow stronger day by day, and she begins to have sex with her son as soon as her husband leaves the house...