PROBLEM TO BE SOLVED: To manage clothes to be deposited by a user and select clothing options after deposit at a desired timing. SOLUTION: Information of a trader who keeps and manages clothes, information of a user who keeps clothes in the trader, rental availability information indicating whether or not the clothes left by the user can be lent to a third party, and the first It is equipped with a database that manages buy / sell availability information indicating whether or not it may be sold to a third party, and a management server that communicates with the database. The management server is based on the rental availability information stored in the database. , A rental processing means for processing rental requests from a third party who wishes to rent clothes deposited by the user, and a trading processing means for processing purchase requests from a third party who wishes to purchase clothes deposited by the user. It has a DB processing means for updating the information stored in the database in response to a change request of rental availability information or sale availability information from a user. [Selection diagram] Fig. 2
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