Kira☆Kira (キラ☆キラ) is a Japanese adult visual novel developed by Overdrive and first released playable on a Microsoft Windows PC on November 27, 2007. An official English translation by MangaGamer was released in June 2009 only available via downloading on MangaGamer's website. A PlayStation 2 version published by PrincessSoft was released on February 26, 2009. A version of the game with all adult content removed was ported to the iPhone and iPod touch by M-Trix Inc. and was released on the App Store on November 20, 2009. In addition, a sequel called Kira☆Kira Curtain Call (キラ☆キラ カーテンコール) was released by Overdrive for the PC in August 2008.
The protagonists of Kirakira, Shikanosuke, Kirari, Sarina and Chie are the members of the second literary club at the Christian school Ohbi Gakuen.