Minami lives happily with her husband and father-in-law. However, recently, due to busy work schedule, her husband often comes home late, or even doesn't come home at all. One day, Minami accidentally drops a glass of water and injures her hand. Her father-in-law then comes over to suck on her finger to help the wound heal faster. The physical contact with his daughter-in-law arouses her father-in-law's long-unused penis, making it erect! Today is the wedding anniversary of the couple, Minami prepares a lavish meal, but she doesn't eat and waits for her husband to return. However, her husband texts that he cannot make it home. At that moment, her father-in-law comes over, and since her husband cannot return, she invites him to share the meal. Feeling lonely, Minami talks and shares her feelings with him, drinking a lot in the process. She gets drunk and falls asleep. Her father-in-law then carries her to his room and takes advantage of her body despite her feeble resistance. He licks and sucks on every part of her body, consuming every drop of her sweat and arousal! After that, her father-in-law repeatedly engages in these perverse acts with Minami. She doesn't like it, but for some reason, her body doesn't reject it. Every time he licks her body all over, her arousal flows, and her body gradually belongs entirely to her father-in-law...