The characters of the series are two sisters Aizere and Arai. Their lives developed in different planes: Arai became a happy mother and wife, Aizere is a beautiful and businesslike girl. After several unsuccessful attempts to give birth to a child, Aizere tries to commit suicide, but her caring older sister Arai stops her and offers to become a surrogate mother. A few years later, after the tragic death of Arai's husband and two children, the sisters will have to fight with each other for the right to become a happy mother.