Shinohara plays a mother named Toyoko who doesn't know how to love her daughter Terue and subjects the latter to physical abuse when she was a child. As a result, Terue was hungry for love but didn't know how to be loved. Years later, Terue grows up and has a daughter Migusa who is in senior high school when she reunites with her brother Takenori who was separated from her at birth. Due to the reunion, memories of her miserable childhood come flooding back. With the support of Migusa, Terue decides to head to Taiwan to look for her late father's grave and finds out the truth behind her mother's behaviour after meeting Toyoko there. The entire filming had been completed with parts of it done in Taiwan.
Prior to this drama SP, there was a movie version in 1998 starring Harada Mieko which had won eight awards including Best Movie and Best Leading Actress in the Nihon Academy Prize. Shinohara revealed that she had watched the movie and was so impressed by it so she had wanted to act in an adaptation of this novel one day if she had the chance. As such, when the offer came along, she was very happy and hopes that viewers will be touched by this drama. As for having to play two very different characters this time, Shinohara said that it was difficult but she found a lot of meaning and satisfaction in playing them. In particular, she liked playing Toyoko very much and would sometimes wonder if she can go back to playing her while she was acting as Terue. Shinohara also revealed that one reason which prompted her participation in this drama is the theme of child abuse and she wanted to make more people aware of this issue through this meaningful production.
Sources: Oricon / Yomiuri Hochi / Sponichi