Watch The Familiar of Zero: Rondo of Princesses full episodes online English sub.
Other title:Zero no Tsukaima: Princesses no Rondo. Synopsis: Following Saito’s heroic actions in the War with Albion in season two, 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. Sources: Myanimelist, Wikipedia