A Surrogate Mother Shiho Aoi

The Yokoyama couple kept telling each other, 'We want a child soon!' and worked hard at conceiving... But even after two years, then three years, they were still not blessed with a child. The other day... just to be sure, they both went to the hospital for tests... and it was diagnosed that the wife, Chisaki, was infertile... The couple then asked their live-in mother, Shiho, to be a 'surrogate mother'...