Yu-Gi-Oh!, a Japanese anime story, centers on students in the Duelist Academy of a future civilization. The Yu-Gi-Oh! story has been developed in comic books, TV series, movies, video games, and card sets, in addition to other media. The initial series ran for five seasons on American television. In 2006, Yu-Gi-Oh! GX premiered as a spin-off of the original. The GX connotes a "next generation of duelists at the academy and permitted the creators to update dueling technology and modernize the series."