A mechanism such as a credit card issuing source by utilizing a charge collecting preacticality, real estate objects collect the rent of the present invention. The present invention, a credit can be issued for the tenants and bears the payment acquitting and on the other hand, by a credit poriomaniac settlement rent of the estate objects, bears to the lessor of the estate objects instead of by imparting a predetermined credit card issuer, bill payment of the fee procuration obligation estate objects rent of the collecting system. A tenant who can obligation to settlement of restitution expense as well. Furthermore, the tenant examination for examination in procuration issue. The settlement of restitution expense and also the rent, credit card issuer service (e.g. point or cashe back) and the object.