Christmas is on danger. Only Pixi Post can save it.

Pixi Post is an elf girl who lives in Arbolié, a secret place hidden in Antarctic where they live all spirits of the Christmas around the world like Santa Claus (from Finland), Three Wise Men (from Near East), Olentzero (from Euskadi/Basque Country) and Hoteiosho (from Japan), between others. After discovering that this last one missed, the forum of the Christmas' Spirits chose Pixi in order to find him. Disguised as a human and working in a mail company called Mezzenger, Pixi tries locate Hoteiosho before the arrival of the next Christmas, realizing that the guilty is Monopolish (a former Christmas' Spirit from the ancient Roman Empire), exiled from Arbolié centuries ago who now live between humans as president of a company called Worldini Inc., trying to turn his former partners in advertising posters and locate Arbolié (moved after his exile) to hold the Great Christmas Tree for recovering his magical powers. With help of Olentzero, Snegurochka, Santa Claus, the other spirits and a human child called Quepa, Pixi will tries to defeat Monopolish before it will be too late.—Chockys

There are many Christmas Genies in the world. They have always worked together to make children happy. There is also a former Genie, called Monopolish, that has always tried to be the One and Only Genie. He has a horrific plan. But the Genies' Forum also has a surprise for him: Pixi Post, The Christmas Defender.—Edorta Barruetabeña

For hundreds of years, holiday genies have united to bring Christmas magic to the children of the world. However, this year a selfish ex-genie is determined to become the all-powerful Christmas Genie by stealing all the magic for himself. Now, it is up to a smart but reclusive elf to stop his evil plan and save Christmas for everyone.