Yokoyama and his wife were working hard to have a child and said to each other, "I want to have a child soon!" However, after two or three years, I still haven't had a child. …The other day, just in case, the two of us went to the hospital for a checkup and my wife, Chisaki, was diagnosed with infertility. The couple then asked their mother, Shiho, who lived with them, to be a surrogate mother for her, but...