A server for storing a machining result of a machine tool and one or a plurality of first terminals connected to the server via a network are included. The server includes an information disclosure part for disclosing the machining result, a request acceptance part for accepting from each of the first terminals a request for the machining result disclosed by the information disclosure part, and a machining condition provision part for providing each of the first terminals with a machining condition corresponding to the machining result in response to the request accepted by the request acceptance part. Each of the first terminals includes a request transmission part for transmitting the request for the machining result disclosed by the information disclosure part, and a machining condition acquisition part for acquiring the machining condition provided by the machining condition provision part in response to the request.