Magic Knight Rayearth II

One year ago, the magic knights freed Pillar, the leader of Cephiro, leaving the country open to invasion from its three neighbors: Autozam, a world of machines whose warriors fight with mechs; Chizeta, an Arabian paradise where twin sisters summon mighty Djinns; and Fahren, a land of magic and mysticism ruled by a childlike empress. Now, Hikaru, Umi, and Fuu return to the magical country to save it from these invaders.