A rendering system includes a rendering unit and a correction unit. The rendering unit renders, based on a result of detection by a detection system, a marker corresponding to a location of a target. The detection system is installed in a moving vehicle for the purpose of detecting the target. The correction unit corrects, based on correction data, the location of the target in accordance with the result of detection by the detection system and thereby determines a location of the marker to be rendered by the rendering unit. The correction data is obtained based on at least traveling information about a traveling condition of the moving vehicle.