English dubbing rights of the first season of the anime series under the title The Familiar of Zero. In July 2008, Geneon Entertainment and Funimation Entertainment announced an agreement to distribute select titles in North America. While Geneon Entertainment still retained the license, Funimation Entertainment assumed exclusive rights to the manufacturing, marketing, sales and distribution of select titles. The Familiar of Zero was one of several titles involved in the deal. Funimation released a complete box set of the series on November 4, 2008. Funimation reported their rights to the series expired in August 2011. Sentai Filmworks re-licensed the first series in North America in 2013 and released it digitally. Sentai released the Geneon English-language version on Blu-ray and DVD on April 8, 2014. Hanabee Entertainment later licensed the series in Australia in February 2014. The second season under the extended title aired in Japan between July 9 and September 24, 2007, containing twelve episodes. Sentai Filmworks licensed the second season (under the name The Familiar of Zero: Knight of the Twin Moons) in North America and released it on March 10, 2015 on Blu-ray and DVD. The third season, also containing twelve episodes, entitled , aired on Japan's Chiba TV between July 6 and September 21, 2008, and Arts Central in Singapore between July 10 and September 24, 2008. An original video animation episode for the third season was released on December 24, 2008. Sentai Filmworks licensed the third season with the OVA (under the name The Familiar of Zero: Rondo of Princesses) in North America and released them on May 12, 2015 on Blu-ray and DVD. The fourth and final season titled Zero no Tsukaima F aired twelve episodes between January 7 and March 24, 2012. In 2012, Sentai Filmworks licensed the fourth season (under the name The Familiar of Zero: F) in North America and released it on July 14, 2015 on Blu-ray and DVD. Music and audio CDs The four anime seasons used two pieces of theme music each; one opening theme and one ending theme. The first season's opening theme is "First kiss" by Ichiko, released on July 26, 2006, and the ending theme is by Rie Kugimiya, released on August 9, 2006. The second season's opening theme is "I Say Yes" by Ichiko, released on July 25, 2007, and the ending theme is by Kugimiya, released on August 8, 2007. The first seasons original