Originally written by Fujimoto Hitomi in a light novel called "Mangaka Marina Series" and its first volume is also made into manga by Taniguchi Amu. In the manga, the story started with Marina who is a manga artist, got a phone call from her friend in Paris saying that she found a paper with treasure map written on it in a book she found in Paris. While they were chatting on the phone, Marina heard her friend answer someone who was knocking on her door, following by the sound of her friend struggling and gun shots, then everything is silent. Concerns over this issues, Marina goes to tell her friend's mom about this and learns from her friend's mom that she just got a phone call from the police officer in Paris that her friend just got killed. Upon learning that her friend's mother has to go to Paris over this issue, she volunteers to go there herself, and is determined to investigate her friend's dead there.

James, handsome, well-educated, and brilliant, is the adopted son of a family prominent in the English aristocracy. James is curious about his origins and wants to know why he was abandoned. Unknown to James, he is the son of the former King of France, Louis XIII, and the elder brother of King Louis XIV. In fact, James and the present king are twins. Louis XIII could not have children for a long time. When finally he had a baby boy he immediately announced that a prince, the heir to the throne of France, had been born. But just after this a second boy was delivered and in the case of twins the second one born is considered older than the first. The king thought it would be a bad omen if he had to announce a different heir...

Aya Tachibana is a sixth-grader who frets and obsesses over friends, family, grades, and more. One day, she joins the "Tantei Team KZ" with four very idiosyncratic boys she met at cram school. There is the glib and attention-grabbing leader Kazuomi Wakatake, the mysterious "expert of personal relationships" Takakazu Kuroki, the smart and stoic math genius Kazunori Uesugi, and the sweet-hearted Kazuhiko Kozuka, who is good at social matters and science. Aya finds her place among them as the "language expert." "Tantei Team KZ" gets involved in modern-day cases, and even if they bicker from time to time, they collaborate by pooling each of their talents and skills to solve these cases.

Aya Tachibana is a sixth-grader who frets and obsesses over friends, family, grades, and more. One day, she joins the "Tantei Team KZ" with four very idiosyncratic boys she met at cram school. There is the glib and attention-grabbing leader Kazuomi Wakatake, the mysterious "expert of personal relationships" Takakazu Kuroki, the smart and stoic math genius Kazunori Uesugi, and the sweet-hearted Kazuhiko Kozuka, who is good at social matters and science. Aya finds her place among them as the "language expert." "Tantei Team KZ" gets involved in modern-day cases, and even if they bicker from time to time, they collaborate by pooling each of their talents and skills to solve these cases.

In a turbulent time like French Revolution, Theresa grew up in a wealthy spanish family and discovered her body and soul with an illicit love affair with her uncle.