In Kyoto, Yui Hitotsugi is an extremely competent lawyer at a law firm. A politician, Seizo Tagane, is given immunity after he testifies against rampant corruption. However, their is national outcry when he is not prosecuted. A committee of prosecutors meet and conclude that Seizo Tagane should be prosecuted. Yui Hitotsugi, a lawyer, takes the prosecutor's position on the case. She researches the case with the help of Prosecutor Shinji Tachibana.