To provide proper information to a customer when required, while controlling information as to the customer effectively including information as to a family thereof.

This supporting system is provided with a storage means a for storing the family information 11 including information as to family make- ups of the customers U while correlated to the customers U and an information provision processing means d for providing the information corresponding to a situation of the customer U or the family Uf thereof to the customer U or the family Uf in a prescribed timing based on the family information 11.