Fate/stay night is a Japanese adult visual novel developed by Type-Moon and originally released for Windows on January 30, 2004. A version of Fate/stay night rated for ages 15 and up titled Fate/stay night Réalta Nua, which features the Japanese voice actors from the anime series, was released in 2007 for the PlayStation 2 and later for download on Windows as a trilogy covering the three main story lines. Réalta Nua was also ported to the PlayStation Vita, iOS and Android. The plot focuses on a young mage named Shirou Emiya who becomes a warrior in a battle between "Servants" known as the Holy Grail War. Through each route, Shirou bonds with a heroine and confronts different mages who participate in the war.