Yuzuko Nanakusa (Koyuki) was betrayed by her husband. She now raises her son and daughter as a single mom, in addition to working at a company. One day, the company she works for goes bankrupt suddenly. She loses her salary and savings. While not knowing what to do next, Yuzuko Nanakusa is contacted by attorney Shinichi Kakihara (Atsushi Ito). They went to the same high school together.
Shinichi Kakihara tells Yuzuko Nanakusa that there is a something more to her company's bankruptcy. To protect the life of her two children, she attempts to reveal a big evil.