Sasaki Shinichi watches his childhood friend Tanaka Yukino receive the death sentence in court. She had set the apartment of the man whom she had dated on fire, and caused his wife and child to be burned to death. Shinichi's intuition tells him that Yukino is not the real criminal. Wanting to save Yukino, he goes to meet the different people who know her, but hears about her bitter past wherever he goes. Meanwhile, Yukino waits dispassionately for the time of her death sentence which is drawing near. Prison guard Sadoyama Hitomi begins to be drawn to her for some reason...