A guy named William uncovers a government fbi conspiracy about mythological monsters existing and being real in this world monsters like vampires, wearwolfs ect fbi tries to kill him but he escapes and as that he starts to get chased all around the world as he comes to japan he gets into a crime case invastagationg lead by a beautiful young detective named Akami as she invastages him the one of the fbi teams locates William and tries to capture and kill him but William manages to escape with Akami they catch ariplane and star running all around the world as a world wide searched criminals slowly becoming monster hunters