MANAGEMENT SERVER, MANAGEMENT SERVER CONTROL METHOD, CONTROL PROGRAM AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a service allowing a user to continue to be a member in an upper rank.SOLUTION: A management server (4) according to one embodiment of the present invention comprises: an image management unit (414) that manages an image of a user received from a picture seal creation device; and a member database (422) that manages a member category of the user. The image management unit is configured to store the image of a user who is a first category member for a first period of time. When the member category is changed to a second category member, the image management unit is configured to delete the image when a second period of time has elapsed even if the first period of time has not elapsed.