To reduce the management cost by facilitating ticket management including ticket transfer confirmation without directly selling the ticket.

A management server distributes a ticket ID to a user according to ticket reservation from a user whose personal information is previously registered to transfer the right to obtain the ticket to the user. On that day for the event, the ticket ID and personal information of the concerned user are received from the user, and a ticket screen display is made on a portable terminal device possessed by the user by collation. At the time of entering the event place, it is detected that an admittance confirming button allotted to a part of the ticket screen and displayed is operated, and the ticket screen display is erased to confirm admittance of the user.