In a coin-operated locker, a short-range wireless communication unit receives UIM information, which is information for connection to a mobile communication network, from a wearable device by short-range wireless communication. A server communication unit communicates with an authentication server that holds authentication-relevant information by mobile communication using the UIM information. The server communication unit receives authentication information from the authentication server. An authentication unit performs authentication using the authentication information received from the authentication server and a locking control unit performs locking control on the basis of the authentication result from the authentication unit.