The present invention allows a processing load for carrying out matching of a plurality of users who satisfy a predetermined condition with each other to be reduced. The user is arranged for every attribute to carry out the matching. The plurality of users thus matched is allowed to play content together. Users with different attributes may alternately stand in a line in which the users are arranged. Further, the users are arranged by inputting a play request for content. Only selection of a condition of the content may be sufficient for the play request.