Vampire Knight (ヴァンパイア騎士 ナ / 吸血鬼騎士) is a Shojo Beat manga written and illustrated by Matsuri Hino. The series premiered in the January 2005 issue of LaLa magazine and has officially ended. Chapters are collected and published in collected volumes by Hakusensha, concluding with nineteen volumes released in Japan. The manga series is licensed in English by Viz Media, who has released all nineteen volumes. The English adaptation premiered in the July 2006 issue of Viz's Shojo Beat magazine, with the collected volumes being published on a quarterly basis.
Two drama CDs were created for the series, as well as a twenty-six episode anime adaptation. Produced by Studio Deen, the anime series' first season aired in Japan on TV Tokyo between April 8, 2008, and July 1, 2008. The second season, aired on the same station from October 7, 2008, to December 30, 2008. The anime uses many of the same voice actors as were used for the drama CDs. The anime adaptations were licensed for release in North America by Viz Media, the DVD released on July 20, 2010.