A mounting system includes multiple mounting-related devices to execute a mounting-related process for mounting a component on a mounting target that are arranged side by side along the conveyance direction of the mounting target. The mounting-related device used in the mounting system includes an execution unit configured to execute the mounting-related process; a first interface configured to enable a mobile work device to access the execution unit, the mobile work device moving a member related to the mounting-related process; and an operation panel disposed in a second interface, being located on an opposite side of the first interface, to which an operator is allowed to access without access of the mobile work device.