I have been married to my wife Haruka for three years this year. - Haruka has been going to the gym for three months now because she is concerned about her body shape. - At first we went to school together, but I retired after a week and only my wife continues to go there. - The gym is privately run, and the training time is alone with a muscular male trainer. - There's no way I can't help but feel uneasy about the distance between my wife and trainer who are gradually getting closer... - Then, as I became more and more suspicious of my wife's appearance, which was becoming more and more exposed day by day, I hid a recorder in her bag.