An operation performing system, comprising: a device; a service providing server for providing a service that causes the device to perform an operation; and a relay server for relaying between the service providing server and the device, wherein the device and the relay server are connected in a server-push enabled state, wherein the service providing server executes a first command-transmission processing for transmitting performance command for commanding performance of the operation, wherein the relay server executes a second command-transmission processing for transmitting, in the server-push enabled state, the performance command to the device, wherein the device executes a first status-transmission processing for transmitting, to the relay server, status information indicative of a status of the operation under performance, and wherein the relay server executes a second storage processing for storing in, the first storage, the status information in association with the service identifying information.