To enable a route that satisfies a request of a user who operates an unmanned aerial vehicle to be presented in a style according to a predetermined format, the present invention involves: acquiring departure location information indicating the departure location of an unmanned aerial vehicle and destination location information indicating the destination location thereof; generating a plurality of candidate routes from the departure location to destination location of the unmanned aerial vehicle; executing processing for outputting route information indicating candidate routes that satisfy a predetermined condition among the plurality of generated candidate routes; and outputting the route information in a style that enables output of the routes, which are indicated by the candidate routes that satisfy the predetermined condition, according to the predetermined format.