Eight years after the mysterious death of his father, Kaito Kuroba, a slightly mischievous but otherwise ordinary teenager, discovers a shocking secret: the Phantom Thief Kaito Kid—also known as The Magician Under the Moonlight—was none other than his own father. The former thief was murdered by a criminal organization seeking a mythical stone called the Pandora Gem, said to shed a tear with the passing of the Valley Comet that comes every ten thousand years. When the tear is consumed, the gem supposedly grants immortality. Vowing to bring those responsible for his father's death to justice, Kaito dons the Phantom Thief's disguise, stealing priceless jewels night after night to find the Pandora Gem before his enemies can use the power for themselves.

Hikaru Shidou, Umi Ryuuzaki, and Fuu Hououji are strangers brought together by fate when they meet during a seemingly normal field trip to Tokyo Tower. Accompanied by a great flash of light, they hear a mysterious woman's plea to save Cephiro, and the junior high heroines are suddenly swept away by a giant flying fish. Afterwards, they arrive in an unknown land, where they encounter a man called Master Mage Clef. Clef informs the girls that they were summoned by Princess Emeraude to fulfill their destinies as Magic Knights, restoring peace and balance in Cephiro. The formerly lively and peaceful land has been in disarray ever since High Priest Zagato imprisoned the princess, who acted as Cephiro's pillar of stability. The Magic Knights reluctantly accept Clef's words as truth and embark on a journey to save Cephiro from the clutches of evil.

In the technologically and magically advanced Wahrheit Empire, rumors of a returning catastrophe known only as the light causes a disturbance amongst the people. Meanwhile, in the capital of the Empire, transporter Innumael Grauer prepares his daily deliveries, struggling to make ends meet for himself and his sister. Leocadio Wöhler, a newly recruited soldier, assists Innumael whilst commuting to work—unknowingly loading a mysterious package containing contraband artillery belonging to a criminal organization. Innumael is accused of smuggling the package, facing possible execution due to the Empire's strict oversight of weapons in response to the rising disorder. However, unbeknownst to him, the very syndicate that placed him in this unfortunate predicament may save him from this fate, at least temporarily. Elsewhere, Leocadio is assigned his first mission—to apprehend the criminal group known as Headkeeper, suspected of transporting illegal weaponry. Magatsu Wahrheit: Zuerst follows these two young men on a journey encompassing the Wahrheit Empire, triggering a chain of events that will not only change their lives but also alter the course of the Empire as they know it.

On a snowy Christmas Eve, Tyltyl and Mytyl sit in their home. Normally, they would be caught up in the Christmas spirit, but their mother has taken ill. So that evening, they lie awake, unable to sleep, when through the window crashes a strange, mercurial magical spirit named Berylune, who reveals that the world we live in isn't the only one there is. And so Tyltyl and Mytyl, accompanied by various spirits, as well as their now-humanoid pets, are led on a journey to find the blue bird of happiness and save their mother, and along the way they visit some strange and wondrous places, and finally, must face the spirit of darkness to attain their elusive goal. (Source: themanime.org)