``I promise to never love anyone but you for the rest of my life.'' The promise I believed was all a lie. I want to build a happy family with the person I love. That's all Reiko had hoped for, but what she was faced with was a cruel reality. Her husband, who was supposed to have been in love with her, suddenly changed after they got married, took a mistress, and no longer cared for his family. Her husband's stepchild was worried about Reiko who seemed lonely. Before I knew it, I started to like her not as my mother-in-law, but as a woman...