My mother-in-law, Lily, came to Tokyo from my hometown to support my wife, who was nervous about giving birth. I thought that my wife would calm down with my mother-in-law's care, but my mood did not improve, and I was ordered to prohibit masturbation because I could not allow myself to feel good alone. Troubled by the sexual desire that was accumulating day by day, I lied to Lily that it was a Japan custom and asked her to take my wife's place. Lily was confused and ashamed, but gradually accepted my ...