The present invention provides a multifunction peripheral unit, including a list transmission section that creates a list of devices connected to a network and transmits the list to a user terminal; a device information reception section that receives information on a device selected by the user from a user terminal constituting the transmission destination of the list; a processing function list transmission section that creates a list of the processing functions that can be executed by the device on the basis of the received device information and transmits the list of the processing functions to the user terminal; a processing function information reception section that receives information on a processing function selected by the user from a user terminal constituting the transmission destination of the processing function list; and an execution control section that controls the device to execute the processing function on the basis of the received device information and processing function information.