My mother-in-law, Lily, came to Tokyo from my hometown to support my wife, who was anxious about giving birth. I thought that my wife would calm down with her mother-in-law's attention, but her mood did not improve, and I was ordered to refrain from masturbation because I could not allow myself to feel better alone. Exhausted by my growing sexual desire, I lied to Lily that it was a Japanese custom and asked her to become my wife.