* Based on a series of light novels written by Yamaguchi Noboru and illustrated by Usatsuka Eiji.

Not long after the war, Louise and Saito seem to be getting along quite well, since she knows that he has 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 has received from her Majesty Henrietta, while a new villain appears in town causing trouble. On the brink of another war treachery abounds, endangering her Majesty and the students at the academy.

Source: ANN

Summary of the previous season: "Hiraga Saito, your average high school student, had just picked up his laptop from getting repaired, when a portal opened in front of him. Saito's curiosity getting the better of him, he touched it and was sucked through. At first, Saito had no idea where he was, and was thoroughly disoriented. As it turns out he had been accidentally summoned to another world by Louise Francoise Le Blanc de La Valliere, nicknamed "Zero Louise", an inept magician in training, who normally blows things up.

It turned out that she was in the process of summoning a familiar when Saito appeared instead. In this world where only the nobility is able to use magic and everybody else belongs to the common folk, it was unheard of that a commoner could became a familiar to a noble. They had to obey the rules though and Saito became Louise's familiar while searching for a way back to his own world.

As Saito became accustomed to his new surroundings, he found out that in this world he had the powers of a Gandalfr, being able to use any weapon, while Louise had the power of Void Magic, the legendary lost fifth element. Together they helped Princess Henrietta de Tristain to fight off the invading Albion forces which came at a great cost."

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Prequel: Zero no Tsukaima
Sequel: Zero no Tsukaima: Princesses no Rondo