A safe unlocking machine includes a currency container that may be moved into and out of a container unit. The currency container includes a coin inlet, a bill inlet, and a lock-incorporated shutter that opens and closes a tag. When the shutter is operated to open, RFID wireless verification is performed between an antenna located in the container unit and the tag of the currency container. When predetermined conditions including accomplishment of the RFID verification are satisfied, rotation of a receiver handle is permitted. When the receiver handle is rotated once, a safe main body of a safe, which is located in the safe unlocking machine, is solely moved rearward. The currency in the safe main body falls down due to its own weight and is stored in the currency container.