The Familiar of Zero: Knight of the Twin Moons is a tV series anime that premiered in summer 2007, produced by J.C.STAFF.

About the production: the story comes from a light novel, there are 12 episodes of about 24 minutes and its current status is "finished".

Its main genres are action, adventure, comedy, ecchi, fantasy and romance, with themes such as Isekai, Magic, Tsundere and War.

On AniList, The Familiar of Zero: Knight of the Twin Moons has an average score of 70%, a good score, and appears on 89,295 users' lists.

The franchise continues in or follows from: Zero no Tsukaima and Zero no Tsukaima: Princesses no Rondo.

This sequel is a continuation of the previous season, not long after the war. Louise and Saito seemingly getting along now since she knows that he had given up his only chance to return to Tokyo for her. The story continues as Louise begins to use Void Magic from a mysterious secret book she had received from her majesty Henrietta, while a new villain has appeared in town causing trouble. (Source: Anime News Network)

Official synopsis from AniList.