A son-in-law who marries the only daughter of the Antachi family and is in the position of Masuo-san. - My mother-in-law, Yuuko, always felt annoyed at my son-in-law, who was at his own pace at best and lacked emphasis at worst. - Today, while we were all enjoying the company after dinner, I was struck by my son-in-law who was playing a mobile game alone. - Yuko regrets that her husband's words were too much and was thinking of apologizing to her son-in-law tomorrow. - Just then, my husband invited me out for drinks with a friend. - Yuko had no choice but to go to bed alone. - When I was sleeping, I felt something fidgety. - I thought my husband had come home, but he seemed strange. - When she opened her eyes, she saw her son-in-law hugging Yuko with bloodshot eyes and sucking her nipples. - Yuuko jumps up in surprise and tells him to stop, but his son-in-law doesn't stop and the caresses intensify. - Yuko resists, but she cannot overcome her son-in-law's strength, and since she has not seen him recently, her lower body is surprisingly wet. - Then, the son-in-law pushed inside Yuuko as if to show off his hot hardness. - At that moment, Yuko became nervous. - The son-in-law moves as if gouging inside Yuuko, and Yuuko is enveloped in a pleasure that she cannot resist. - The son-in-law's piston became more intense, and the moment he pulled out, Yuko's butt was covered with hot liquid. - Yuko was immersed in the pleasure of a powerful act that she had never experienced with her husband for a while. - The next night. - When Yuko headed to the living room, her son-in-law was sitting with a depressed look on his face. - The son-in-law told Yuko that he was sorry for yesterday. - Yuko also apologized, saying that she had said too much, and gently hugged her son-in-law. - "I know it's not a good idea," Yuuko whispered and kissed her son-in-law. - He said just one more time, just for today, and then he placed his lips on his son-in-law again...