Tokyo's homicide cop Yukihira Natsumi has a bad reputation for not working well with colleagues, while pushing the limits of the law. Her goal is to bring in bad guys with all means necessary. Forced to kill a man five years ago, she earned the ire and distrust of some of her colleagues and members of the community. Though she may be successful in her job, her personal life is a complete mess as she is in a divorce and left alone to raise her young daughter.