System Diagram
WARNING: This page is about a different car, the 2017 Mitsubishi Mirage G4. However, it is still accessible from the selected car via links, so may be relevant.
When the ignition switch is returned to the "ON" position after starting the engine, ECM turns OFF the starter relay, the pinion gear is disengaged from the ring gear.
An overrunning clutch is provided between the pinion and the armature shaft, to prevent damage to the starter.