A game system has plural game devices and a storage device that stores attribute information and location information of a pet in association with a player ID. Each game device obtains a player ID of a player who plays at the game device, and obtains attribute information corresponding to location information identifying a game device identified by the obtained player ID, and controls a game to cause the game device to display a pet according to the obtained attribute information. In a case in which location information stored in association with a player ID of a first player who plays at a first game device is changed to that which identifies a second game device identified by a player ID of a second player, the first game device does not display a pet of the first player, but the second game device displays the pet of the first player.