Tazuna Ichikawa, known as a narcotics division chief and investigator, possesses a strong will to pursue justice, yet gradually unravels as she struggles to overcome evil. Her investigation is not merely about solving crimes, but a battle fought with her beliefs and life at stake. Facing hardships such as betrayal by her superior, physical abuse, and the loss of status and honor, she transforms into someone who lives solely for one ultimate purpose. The strength and vulnerability she displays throughout this process, along with her final state, profoundly moves the viewer.