Maron seems to be a normal, ditsy kinda of school girl when in actuality she is the reincarnation of Joan of Arc. With her angel sidekick Finn, she attempts to seal demons which are hiding in pieces of art and possess weak-hearted people. However with sealing the demons the art disappears leaving the police and her best friend Miyako, the police chief's daughter, to suspect her to be nothing but a common art thief. More strange twists occur when a smooth talking new boy in school moves in next door along with the presence of a new "art thief" Sinbad, who races against Joan to seal demons. Now Maron must race against the police and Sinbad to seal the demons and manage just to make it through school and a strange homelife.
Kaitou Jeanne sends a notice card saying she will take the "Blue Morpho" a butterfly in Chiaki's fathers large collection that a demon was hiding in and possessed him. But where have all of the missing doctors from the hospital gone?
To practice efficiently, the coaches for gymnastics and the soccer team have set up a "resort" for their teams. But the resort is haunted?! On top of that, just when Maron and Miyako are ready to relax, they find out that Chiaki joined the soccer team yesterday and will be spending his vacation with them! If there are demons, is it possible that ghosts could exist as well? Can Kaitou Jeanne fight a ghost?
With her powers gone, Maron must find another way to save a boy from an upper-level demon that has infiltrated a statue. She taps into her will to become stronger, and that activates her power to transform again, becoming the upgraded Kaito Jeanne.
During a World History class trip to a historic church, a demon takes over a beautiful pipe organ and Maron and Chiaki reveal their feelings for each other. But their mission to catch the demon could blow Sinbad's identity...and Maron's trust in Chiaki.
Zen, a boy who's been hospitalized for five years due to a heart condition is being targeted by Noin. Jeanne will simply not stand for this. But this time, his live human heart is the thing being possessed. How can Jeanne checkmate?!
When Miyako's brother, Subaru, becomes the main target for demonic possession, Miyako's mind is in a whirl of confusion. Suddenly she realizes how all the people Jeanne has stolen from became calm after the robbery, so when Miyako's innocent wish calls forth Jeanne, will Jeanne be able to grant it? Or will Myst be able to prove that human love is so fragile?
Chiaki just can't seem to get through to Maron. But with Miyako's and Kanako's help, perhaps Maron's heart will be healed. However, when Myst attacks another person close to Maron, will it be the final straw? Will Maron's heart be close off forever?
Miyako's father purchased a new computer for the police station, the Chief called him and talk to him about the computer, but suddenly his gun got possessed by a demon will Kaitou Jeanne save him?
One of the high class demons is now posing as Maron's history teacher! The police get to marvel at her return (and her new outfit) as a beautiful angel painting is possessed by a demon! The painting turns from "An Angel of Happiness" to one that is consumed with flames. Will Kaitou Jeanne's wings be clipped as well or will Sinbad be able to save her?
The Petit Claire is acting strangely. On top of that, Saotome's motorcycle has been possessed by a demon! What good can a motorcyclist be without his motorcycle? With the Petit Claire acting up, what will this latest "Checkmate" cause?
The owner of the Grand Marine is said to be able to rule the sea. Kaitou Jeanne and Sinbad are forced to sneak on to a cruise liner to retrieve the demon. However, just when they are ready to "Checkmate" the stone disappears in a small blackout. Has another thief entered the show?!
Kaitou Jeanne barely escaped Miyako from an earlier "Check Mate", but catches a cold from falling into the ocean. Maron ends up at the hospital that Chiaki's father owns. Now, Chiaki's father is the new target, but for some reason, the a notice is sent to the police reporting that Kaitou Jeanne kidnapped Chiaki's father.
In this episode Maron and her friends plan to go to see the play, Romeo and Juliet. But before the show she see's The two actors who are really a couple and notices them fighting. The Petite Claire picks up a demon and Maron realizes that the actor who is playing Romeo has been possessed by a demon. Maron must find a way to save there relationship and the show before Sinbad arrives.
It is time for Fin's return and the weather is turning chaotic. Weather enough to create heat strokes during the winter, volcanic erruptions, tornados, and tidal waves galore. Just what is it that Chiaki needs to tell Maron about? And what does it have to do with Fin?
Game End! It's the final episode and it is the battle for earth and Fin's soul! Kaitou Jeanne stay strong and serious, matchless and marvelous, energetic and courageous, and must find a way to love herself enough to save Fin from the Devil!
Miyako has been captured by Fin. Like Jeanne d'Arc, the devil is turning her friends against her. Can Maron save her best friend from a demon without checkmating her? Or can Miyako find and believe in her true self, the self that believes in Maron?
Fin is evil?! And Maron has been helping the Devil all this time?! Everything is revealed in this episode to everyone. Is Jeanne d'Arc the only one who can help Maron gain her spirit and courage back?
Myst, desperate to kill Jeanne before this mysterious "Queen" gets to her, sets up an elaborate plan to kill her by using her school. Meanwhile, Noin gives her dreams of his memories of Jeanne d'Arc, but with Chiaki being her betrayer. This is so she will feel that she cannot trust anyone. To what lengths will Myst go, to kill Jeanne?
Zen's pure wish to live on his own strength brought bittersweet joy, despite his death. Now, another young girl finds both her parents to be possessed by demons. Can Jeanne save yet another family, when that family happens to be an ambassador's family? Are the police going to stand for Jeanne trying to rob their international guests?
Maron has just found out Chiaki's greatest betrayal to her! He is actually Sinbad and first approached her to stop her from being a Kaitou by getting her to fall for him. So now, with Maron's heart in chaos, Kaitou Jeanne's barrier has weakened making her easy pickings for demons. Can Chiaki prove to her that he loves her?
Maron and Iinchou were invited to be in a TV commercial by a man who is actually tricking people into giving him money. But when this man has been possessed by a Demon, will Kaitou Jeanne save this man or fail in the process?
This is just too much for a schoolgirl to handle! First, Maron's teacher might have seen her transform from Kaitou Jeanne back into Maron! Then, Fin visits, but only long enough to say that Sinbad and Access are summoning demons to their world! For Kaitou Jeanne this time, it appears that a live dog is being possessed by a demon, rather than a inanimate object. To make matters worse, the dog is a guide dog for a blind woman that Maron meets. If Kaitou Jeanne "checkmates", will the dog disappear forever?!
This time, the vacation is at a cute little spot that has been transformed to fit the style of the Edo Era. As they enjoy themselves, wearing various costumes mimicking the old style of clothing, a demon has possessed the owner of the place! On top of that, it takes Fin, Miyako, and Iincho hostage. How will Maron transform into Kaitou Jeanne without Fin?!
Miyako has a dream where Jeanne is Maron and she keeps thinking about her friendship with Maron and her crush of Chiaki. When Jeanne sends her next warning. Miyako leaves a red mark on Jeanne's right cheek that doesn't wash off for 3 days. The next day Maron comes to school with a bandage over her right cheek and everyone suspects her. Miyako doesn't want to believe it at first, and makes Maron take off her bandage in front of the whole class to prove Maron's innocence as repayment for what Maron has done for her since the day they became friends.
There is a series of robberies in town, but there is also the possibility of a demon. The police are faced with a challenge to catch Jeanne and Sinbad or the robber who have all sent their notices at the same time. At the end of this episode Maron finds something in her mailbox.
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