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. 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. 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. 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. The Familiar of Zero (2006) The Familiar of Zero: Knight of the Twin Moons (2007) The Familiar of Zero: Rondo of Princesses (2008) The Familiar of Zero: F (2012) References External links Official website J.C.Staff's The Familiar of Zero website Familiar of Zero