A series of terrible murders involve Laura in the feud of ancient alchemists and discover the secret of a racial alliance with super powers. The core of the story is some Obus's black-box ancient paintings-/kloc-five works of art created by alchemists in the 4th century. Now alchemists are eager to get them back. Laura's former mentor von Chloe became the victim of a bloody murder. Being suspected of serious murder, Laura had to find out the truth and avoid the police. With the deepening of the investigation, Laura gradually learned the truth of von Croix's death and the huge conspiracy hidden in it. ...