Includes the same-financial-institution account register control section (101A) and the other-financial-institution account register control section (101B) that make the display section (103) display a screen for enabling a customer to input information of a plurality of accounts to be registered into the magnetic card (700) or the IC card (800). The account delete control section (101C) makes the display section (103) display a delete screen for enabling the customer to input account information to be deleted from the information of the plurality of accounts. The same-financial-institution account register control section (101A) and the other-financial-institution account register control section (101B) control each section so that the information of the plurality of accounts to be registered input by the customer is registered into the magnetic card (700) or the IC card (800). The account delete control section (101C) controls each section so that account information to be deleted input by the customer is deleted from the magnetic card (700) or the IC card (800).