In a city where death is a familiar presence, a string of gruesome murders sparks Emilia's intuition that something sinister is at play. As she delves deeper into the investigations, she's drawn into a cat-and-mouse game with Azazel, a demon master of manipulation who lurks in the shadows. As their paths intersect, the darkness surrounding Emilia tests her pursuit of justice. But as the game intensifies, one question lingers: Will the cat become the mouse?