To provide low-priced proxy service by omitting wastefulness from conventional proxy driving service.

A foldable motorcycle allowing a highway travel is used in the proxy service. A staff waits in a folding state of the motorcycle in an office or on the road. When receiving a request, the stuff stands up the foldable motorcycle and goes to a site. The stuff folds the motorcycle after arrival at the site, loads it in a trunk or a seat part of a vehicle of a customer, and arrives at a destination. After sending the customer, the stuff stands up the motorcycle and returns.