Unable to suppress her desire to be with the man she loves, Yuna overcame the opposition of those around her and married a man with a child. As expected, her stepson Kazuya was not very open to her and she spent her days in agony. One day, she witnessed Kazuya masturbating. It turns out he is still a virgin and has never been with a woman. Yuna feels ashamed for being a man, but she thinks it might be a good opportunity to get closer to him and takes a bold step.