A few years after marrying his wife, Ai, recently Ai began to worry about his body shape, saying, "I've gained weight...?" She didn't listen even when I told her that she was fine because she was originally thin, and she decided to join a personal gym together. In the end, I'm not good at exercising, so I quit right away, and only her wife goes to the gym. Just being alone with a muscular trainer makes her uneasy, but Ai's clothes are becoming more revealing day by day. And I, who was skeptical, secretly hid an IC recorder in Ai's bag, but...
