1. A non-transitory computer readable medium having embodied thereon a game control program product that causes a computer to move a player's character and non-player characters on a map, the program product comprising: a module that controls the movement of the player's character on the map; a module that causes, of those non-player characters located on the map, non-player characters located within a predetermined range from a position of the player's character to join a procession following the player's character; a module that moves the non-player characters belonging to the procession to a position previously occupied by the player's character to allow the non-player characters to follow the player's character; and a module that increases, upon receipt of a predetermined control input, the speed at which the non-player characters belonging to the procession move to the position previously occupied by the player's character and gathers the non-player characters near the player's character.