A display system including an information processing device, a projector (a first projector), and a projector (a second projector) includes a first sensing unit sensing a first event which occurs by an operation of an indicator with respect to an image projected from the first projector; a second sensing unit sensing a second event which occurs by the operation of the indicator with respect to an image projected from the second projector; a replacement unit replacing a set of first event information representing the first event and second event information representing the second event with third event information representing a predetermined third event, in a case where the first event and the second event satisfy predetermined conditions; and a processing unit performing processing corresponding to the third event information.