I have been married to my wife, Haruka, for three years this year.Recently, Haruka has been going to the gym for three months because she cares about her figure.At first, we went together, but I retired after a week, and only her wife continues to attend.The gym is privately run and training time is just the two of us with a muscular male trainer.There is no reason not to feel uneasy about the distance between the wife and the trainer who are gradually approaching.And I became more suspicious of my wife's appearance, which is increasing day by day, so I hid a recorder in her wife's bag.