JUQ-153 Letting my beloved wife go to the gym with her own PT and the ending was bitter

“The female instructors provide dedicated guidance!! Attracted by these words, my wife and I went to a personal gym in Tokyo. The instructor's name was Rio, and she was kind enough to guide us, but I was scared because she was strangely close to us. And Rio suggested giving me a private lesson while my wife took a shower. A few days later, I told myself that it was okay because I was just working out and went to the personal gym where Rio was waiting. It turned out that the plot was a trap in which she was waiting for my arrival