Ai accompanies her husband, who is struggling after a failed business, to visit her father-in-law. However, the senile old man has forgotten where he hid his assets. Desperate, the couple decides to exploit the father-in-law's lecherous nature—specifically, that his memory returns in the presence of young women. While providing care, Ai engages in extreme sexual bargaining with him... Please enjoy the bewitching negotiations and authentic geriatric sex featuring popular actress Ai Hoshina!