My beloved wife Hinako and I were living happily together, but there was one major flaw in my life. We had always dreamed of having children, but when we discovered that I couldn't ejaculate, our hopes were shattered. Desperate for help, I confided in my brother about my struggles. He responded coldly, asking if I knew about "donating sperm." Feeling like I had nowhere else to turn, I reluctantly agreed to let him have my wife for just one day. However, what started as a desperate measure quickly turned into an intense sexual encounter between them...
