Recently, my wife, who is picky about dieting, seems to be addicted to a certain video. Lose weight in those 10 minutes! The female trainer in the video titled "Hibiki" seems to be open a personal gym in Tokyo. A few days after that, I will go to Hibiki's gym with my wife for a free trial. Hibiki was kindly and politely teaching me the training, but for some reason I was strangely close. And I was invited to take a lesson with just the two of us in a voice that my wife couldn't hear.