The tale of Final Fantasy Tactics A2: Grimoire of the Rift begins as Luso, an energetic young boy, discovers a mysterious book whilst tidying the library as a punishment for his latest episode of light-hearted mischief. He opens the book and is transported to another world called Ivalice. Before he can catch his breath, he finds himself joining a clan led by a friendly, if gruff, man named Cid. With his new clan at his side, he sets out to find a way home...