To provide a system which performs simple and interesting affinity diagnosis using an image.

The system is characterized in: transmitting face image data obtained by photographing a person himself or herself by the camera of a mobile telephone set to a server; extracting specific data on the face needed for fortunetelling from the face data of the person himself or herself; comparing the extracted specific data with previously stored specific reference data on the face needed for fortunetelling to select the closest reference data as data on the person himself or herself; transmitting face image data obtained by photographing a partner by the camera to the server; extracting specific data on the face needed for fortunetelling from the partner's face image data; comparing the extracted partner's specific data with the reference data to select the closest reference data as partner data; comparing the data on the person himself or herself and the data on the partner to determine an affinity degree; and transmitting the affinity degree to the mobile telephone.