1. An image management apparatus for controlling a display of a captured image, the apparatus connected to a communication terminal through a network, the apparatus comprising: a receiver to receive, from the communication terminal, an instruction for displaying a drawn image drawn by a user on a captured image while the captured image is being displayed to the user, the captured image being a full spherical panoramic image; and circuitry to, generate an attachment image containing the drawn image, and attach the attachment image containing the drawn image to the captured image, the attachment image containing the drawn image being a planar image.