MANAGEMENT SERVER, CONTROLLING METHOD THEREOF, NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM HAVING STORED THEREON A COMPUTER PROGRAM FOR A MANAGEMENT SERVER AND TERMINAL DEVICE

A management server is provided with an accepting unit for accepting identification information identifying an application, a specifying unit adapted for specifying a part or all of candidate users satisfying all of conditions out of one or more users with whom a request user's friendship is built in one or more utilized applications that the request user has utilized, a first condition in which the candidate user utilizes the application identified by the identification information, a second condition in which the request user's friendship with the candidate user has not been built in the identified application, a third condition in which a friend upper limit is not encountered, and a display controlling unit adapted for displaying the part or all of the candidate users specified by the specifying unit in the terminal device of the request user in order to select one or more users from the part or all of the candidate users.