In businesses that renovate or construct vacant houses and other residential properties for use as short-term rentals, the aim is to optimize the effectiveness of the accommodations. [Solution] The provision unit 22 generates
web page data in response to a request received from the member terminal 10 via the
communication unit 21 and provides it to the member terminal 10, and also stores the information received from the member terminal 10 in the storage unit 26. When the total number of membership units purchased by member 1 reaches a predetermined number, the distribution unit 23 executes a process to renovate or construct a new house 4 with the sales of the membership units, and distributes
accommodation rights to member 1 for a number of nights corresponding to the number of units stored in the storage unit 26, using the house 4 as a short-term rental
accommodation. When the exchange unit 24 receives information from the member terminal 10 via the
communication unit 21 that member 1 wishes to exchange the
accommodation rights distributed by the distribution unit 23, it exchanges accommodation rights between members 1 who wish to exchange with each other.