The present disclosure provides a technique to encourage a user who is lent a vehicle to obey manners at time of using the vehicle. In the present disclosure, a controller executes: informing a user who is lent a vehicle of information indicating a plurality of manners provisions about use of the vehicle; acquiring a picked-up image of the vehicle about the plurality of manners provisions at time of returning the vehicle; and calculating an evaluation value for obedience of the plurality of manners provisions, based on the picked-up image.