The player assumes the role of a 13 year-old boy named Oliver, a resident of Hotroit City, whose mother, Arie, dies suddenly. A doll, previously given to Oliver by his mother, reveals itself to be a male fairy named Shizuku, who gives Oliver a magic book that allows him to go to the world of "Ninokuni," a reality parallel to his own, where the fairy states the boy may be able to revive his mother. There, he encounters alternate versions of people he knows.
Source: Joystiq, Gamespot, Wikipedia
