My wife was soon to be in the final month of my final year, and I was about to become my father, so my sister-in-law, Shoko, came to visit me. I had been having sexlessly, but when I was masturbating for the chance of being alone, I was discovered by Aroko, or Shoko... I managed to leave the situation to her, but Shoko, who was frustrated because her husband was on a business trip, used it as a joke to play with me. Before long, I was swayed by the thrill and excitement of not choosing a place...