Next summer, I will go on an overseas trip with my good friend and his wife. I'm planning to go diving, but I'm the only one who's not good at swimming, so I decided to go to a swimming school secretly. At that school, it was a long time since I had a one-on-one contact with a male instructor and a man other than my husband. I had no way of knowing that she would be secretly filmed, and that the footage would be used as a story to start the days of her lessons...
