WORK SYSTEM

A processor is configured to set a monitoring region including at least a part of a movable region of a work device outside a vehicle, and a detection device is configured to detect information on the vicinity of the vehicle. Here, the processor is configured to, when it is determined that an obstacle has entered the monitoring region or it is predicted that an obstacle will enter the monitoring region based on a detection result of the detection device and when a work mode is not an emergency mode, control the work device such that the work device switches the work mode to the emergency mode.