The modern city of Yokohama. And you're - a serial killer. The famous criminal who leaves after his deeds the sign of the cross on the bodies of the victims. And recently, a young lady detective was sent to hunt for you. Dazai Osamu. She is a trusted subordinate of Fukuzawa Yukichi, who is the boss of an armed detective agency. And her partner - Kunikida Doppo. Their task - is to put you behind bars. And now, you are standing over the body of your victim.