Vampire Knight (ヴァンパイア騎士(ナイト), Vanpaia Naito) is a shōjo manga series written 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.