A true thunderbolt in the blue sky.His father-in-law, who had repeatedly sexually harassed his son, Koji's wife, Sachiko, was about to be kicked out of the house by his son.The father-in-law, who had assumed that Koji would never do such a thing, fell ill due to the confusion and anxiety about the future.No matter how much he sexually harassed him, he was worried that his parents were his parents, so Sachiko decided to take care of him.When Sachiko was wiping her father-in-law's body, her father-in-law demanded to wipe her crotch without apology.