To provide an environment allowing the use of Internet service without storing the personal information of a user on the side of a server possessed by a discloser of the Internet service when practically using the Internet service.

After a database manufactured on a client PC side by the user oneself is read on the client PC side by the execution of a personal information transmission part, connection to the personal information transmission part is established. In a personal information reception part on the discloser server side, a wait part waits simultaneously with display on the client PC side, and waits for information transmission from the client personal information transmission part. The user executes an information transmission function of the personal information transmission part on the client PC side to transmit the personal information to a client reception part. All exchanges of the personal information caused by the execution of the transmission part and the reception part are performed in the client PC.