There are provided a front roof, a rear roof, a glass unit including a rear-window glass, a rear roof support link which openably supports the rear roof at a vehicle body, a front-roof support link mechanism which openably supports the front roof, the front-roof support link mechanism being connected to the rear roof support link such that closed states of both the front roof and the rear roof are achieved by means of the rear roof support link and the front-roof support link mechanism, and a glass-unit support link mechanism which is connected to the rear roof support link and configured to support the glass unit in a closed position.