Prologue: The Wolf and Reaper

Two years passed, after the death of his squad and believing that he is dead from a blue haired woman, who killed his older mother, Ryu has become an lone Assassin and is now in possession of a high class weapon that possesses immense powers and contains a high ranking danger beast like demon, as he and his sister went to hunt down the woman and every organization of the empire, but what will happen when he runs into someone that he thought he would never see again and alone in search of revenge.