In at least one embodiment of the disclosure, an image display system includes an image display device configured to display a display image based on supply content, and a plurality of image supply devices. Each of the image supply devices includes a display section having a first display area configured to display the display image of the image display device. The image supply devices each include a content selection section configured to receive a selection of supply content from among a plurality of supply contents stored with the image supply device. The image display device is configured to receive the supply content from at least two of the image supply devices and display the supply content as the display image.