A display system, a display apparatus, computer-readable storage medium are described. According to one implementation, a display system includes display apparatuses placed at a plurality of designated sites and a management server. Each of the display apparatuses include a communication unit which acquires user information from a terminal apparatus and transmits the user information to the management server. The management server includes a server receiving unit which receives the user information, a user registering unit which registers the user information on the terminal apparatus, a sheet creating unit which creates a stamp rally sheet including at least one of the plurality of designated sites for the user information, and a server transmitting unit which transmits the created stamp rally sheet to the display apparatus.