To automatically reserve a studio meeting an open schedule for all members, including a band, or the like and geographical conditions, or the like.

Firstly, member working for a group A (the band, or the like) register, through an involved user terminals 104, 108, 112, a member's available area (geographical range), the open date and time, and a musical instrument, equipment, and the like desired rental on a server 102. When any one of the members accesses the server 102 to reserve a studio, the studios located at the area available for all the members, acceptable reservation on the open data and time for all the members, and allowing entire arrangements for the musical instruments, the equipment, and the like desired the rental are enumerated on the display screens of the user terminals. Conducting specified operations reserves any one of the studios, and then automatically orders the equipment to be rented, or the like from a rental dealer.