Arata is set to be expelled! The only way to save himself is to be taught more about the magic archives from the Trinity Seven themselves.

One day, the bright red sun stopped shining, causing the Breakdown Phenomenon—the destruction of Arata Kasuga's town and the disappearance of the people inhabiting it. All, however, is not yet lost; by utilizing the magical grimoire given to him by his childhood friend and cousin Hijiri Kasuga, Arata's world gets artificially reconstructed. In order to investigate the phenomenon, Lilith Asami appears before Arata, whose artificial world suddenly disintegrates. He is given two choices: hand over the book, or die. However, Arata chooses the third option—enrolling in the top-secret magic school Royal Biblia Academy, where six other magical users await him. Together with Lilith, these six form the Trinity Seven, the elite of the school who each bolster their own power and skill. With the ambition to save Hijiri and the help of his newfound friends, Arata stops at nothing to prevent the destruction of his beloved hometown and to bring his best friend back.

In their continuing journey to find the feathers that are the fragments of Sakura's lost memory, Syaoran, Kurogane, Fai, and Sakura move through time and space with Mokona. Here, they visit the Land of the Birdcage, a seemingly peaceful country where people and birds live together, each person having a bird companion. After a boy named Koruri confuses Syaoran and Sakura for bodyguards and attacks them, they learn that the king of the country possesses a mysterious power. Princess Tomoyo, Koruri, and the other oppressed citizens, having had their birds taken from them, live in hiding within the forest. In order to take back Sakura's feather, Syaoran and the others stand up against the scheming king. (Source: ANN)

The story takes place in the wintry land of Shantia, with Manatsu and the others invited to the land by its princess Sharon. But as they arrive, a mysterious monster attacks Shantia, and it is closed off to outsiders. (Source: ANN)