Chisato lives with her husband and son. Chisato is always timid and anxious, worrying about her bullied son. One day, her son said, "Isn't it better for a man to be overflowing with confidence?" and forcefully hugged her. Despite trying to resist, she couldn't help but feel pleasure as her excited son penetrated her. "You're enjoying this. Women really do like men who are masculine." From that day forward, her son started assaulting her every night. Because he wanted to become a strong man...
