The Familiar of Zero: Rondo of Princesses (2008)

Following Saito's heroic actions in the war with Albion in the second season, Saito and Louise return to Tristain, only to have the runes which bind Saito and Louise disappear. Saito and Louise struggle with a relationship no longer defined as Master and Familiar, as they search for an elf who has the power to restore the dead to life, and may hold the key to understanding Saito's loss of the Gandalfr's power.