A year after being diagnosed with azoospermia, her husband had been constantly tormented by despair. Three years into their marriage, his wife was now at the perfect age for childbirth. He kept saying, "I'm sorry, it's all my fault," blaming himself, but she always comforted him gently: "Don't rush. Let's take our time and heal." One spring day, he handed her a document with a lifeless expression. It was a brochure from an organization called Foundation Sons of Life—an unlicensed, suspicious sperm bank not approved by Japan's Ministry of Health, Labour and Welfare.