Escape room NDSL first crimson room

After taking away the pillow, click on the small gap between the cushion and the binding head. There is something inside. When facing the blank wall, click on the lower left corner near the bed. There is something there, and there is a continuous opening and closing of the curtains. After a few times, something will fall off. With them, you can open the small box (projector) and play it (after the screening, click on the flash point on the wall, and there will be a dark room).