PROBLEM TO BE SOLVED: To efficiently and precisely manage various works related with subsidi ary. SOLUTION: A server 1 having common information and variable information on a contract rest house 40 and a terminal 20A to be used by a user 20 and a terminal 30A of an organization to which the user 20 belongs are connected through the Internet, and the sum of subsidiary to be supplied to the user 20 when the user 20 uses the contract result house 40 and a method for paying the subsidiary are searched for and obtained through the combination of the common information and the variable information on the contract care house 40. When the use 20 applies for the use of the subsidiary, the server 1 side requests the organization to conform whether or not the user 20 is approved as an authenticated person, and the organization confirms the validity/invalidity of the use of the subsidiary concerning the user 20 and his companion according to the request for confirmation, and transmits the result to the server 1.
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