Ai and Hoshina are colleagues, thanks to their manager Michael, both of them have the opportunity to date and quickly move towards marriage. But three years later, Hoshina's bad habits gradually become more apparent, disappointing Ai. They constantly argue, and their marriage life is heading towards a dead end. Ai's boss also notices this, he approaches to comfort and encourage Ai. And in one moment of listening to Ai's confession, he actively wants to bring happiness to her. Regardless of Ai being a married woman, she tries to refuse but the boss's strong actions make it difficult for Ai to resist. For the first time, she sees a cock that big, it's so big that she can't fit it in her mouth. Every thrust feels like a powerful machine pushing deep inside her, making her climax countless times. Since then, she no longer has any interest in her husband. She constantly thinks about her boss, masturbating when thinking about the two of them. They continue to work overtime together to have sex, even Ai sucks the boss's cock while people are working nearby. And Ai's marriage is getting worse, she decides to divorce her husband to be able to always be with her boss...