A detective is tasked with uncovering the culprit of the murder of the mother of his deceased friend’s daughter, who was mauled by a beast man?? Guldemond is haunted by the power to turn into a savage wolf beast. While Yasumi is blessed with the power of a lucky cat. They now have to investigate who is the beast that killed her mother and why they are looking for Yasumi, uncovering and fighting many more different beasts in the process.