Kae.Kaieda is cosplaying as Mizore Shirayuki from Rosario + Vampire. Rosario + Vampire (ロザリオとバンパイア Rozario to Banpaia) is a Japanese manga series written and illustrated by Akihisa Ikeda. The story revolves around Tsukune Aono, a boy who accidentally gets enrolled in a school inhabited by monsters and demons. He quickly befriends Moka Akashiya, a vampire who soon develops an obsession with his blood, and later meets other girls who soon take a romantic liking to him. The manga began serialization in Monthly Shōnen Jump, from August 2004 to June 2007 (one extra chapter was serialized in Weekly Shōnen Jump in September 2007). A sequel to the first series, Rosario + Vampire: Season II (ロザリオとバンパイア seasonII Rozario to Banpaia seasonII), is ongoing and began serialization in November 2007 in Jump Square. The series is licensed in North America by Viz Media, and in Australia and New Zealand by Madman Entertainment.
A 13-episode anime adaptation of Rosario + Vampire aired in Japan from January 3 to March 27, 2008. A second season titled Rosario + Vampire Capu2 continued the series, introducing more characters from the manga and new anime-exclusive characters, also aired in Japan between October 2 and December 24, 2008. At Anime Central 2010, North American anime distributor Funimation Entertainment announced that they have acquired both anime seasons of Rosario + Vampire for release in 2011.