DELIVERY SYSTEM, DELIVERY METHOD AND DELIVERY DEVICE

For a user to receive a package more smoothly from an unmanned ground vehicle, a delivery system includes an unmanned ground vehicle having at least two surfaces each of which is provided with a door of a storage compartment for receiving a package and facing in different directions. The delivery system determines a surface provided with a door of a storage compartment that stores a package to be received by the user next among the at least two surfaces, and adjusts a direction of the unmanned ground vehicle based on the determined surface before the user reaches the unmanned ground vehicle.