A display system (100) includes an irradiator (230), an imager (210), an image generator (250), a display (220), and an adjuster (170). The irradiator irradiates an object with light having a predetermined wavelength. The imager captures an image based on light excited by the light having the predetermined wavelength. The image generator generates a display image (6) based on a capture image (5) captured by the imager. The display displays the display image. The adjuster adjusts the display image on the basis of a user operation. The display displays a superimposed image (7) in which the display image and the capture image are superimposed with each other, upon adjustment of the display image by the adjuster.