Ayahi Takagaki is a Japanese actress and singer. She had her first major voice acting roles in 2007, voicing Jasmine in Deltora Quest and Lucia Nahashi in Venus Versus Virus.

Venus Versus Virus is a Japanese manga series created by Atsushi Suzumi which was first serialized on June 27, 2005 in MediaWorks' shōnen manga magazine Dengeki Comic Gao!. The manga ended serialization in Dengeki Comic Gao! on February 27, 2008 due to the magazine's discontinuation, but the manga continued serialization in ASCII Media Works' manga magazine Dengeki Daioh between March 21 and July 26, 2008. Eight bound volumes have been released by ASCII Media Works in Japan. The manga has been licensed for English language distribution by North American–based company Seven Seas Entertainment; the first volume was released in July 2007. Later, a drama CD was created based on the manga series in October 2006. The series has since been adapted into an anime produced by Studio Hibari that aired in Japan between January and March 2007 on BS-i, consisting of twelve episodes.