In the story, 33-year-old Kanazawa native Noriko had decided long ago not to accept an ordinary, provincial life for herself. So, she had gone to college in Tokyo, worked on her own, married a man at an elite trading firm, and had a child. She has just returned home from five years abroad with her husband and four-year-old son. However, she senses a large emptiness in her heart since coming back. Moreover, there is a man who shares a big secret with Noriko.