A drive-through system includes: a store terminal including a first processor; a vehicle including a second processor; and a user terminal device including a third processor. The second processor is configured to receive, from each occupant, operation to select a product to be purchased in a drive-through service, generate order information indicating the product selected by the occupant, and output the generated order information to the store terminal device. The first processor is configured to acquire the order information, generate, by using the acquired order information, settlement information for each occupant for performing settlement processing of the product, and output the generated settlement information to the vehicle. The second processor is further configured to acquire the settlement information, and display the settlement information of each occupant. The third processor is configured to execute the settlement processing of the product by using the settlement information of the occupant displayed.