you're facing towards a wall. Turn behind you and exit the door. Move a step forward turn right and enter the open entrance move a step forward and turn left and move straight. On the left side, you can see another open entrance. Enter into it and walk towards the narrow path all the way towards the curtain in front of you. From there in the right side, you can see the open hall. Walk towards it and enter into another open entrance. Where you can see a piano in front of you. Walk towards the piano and stand in front of the window. Beside the piano and the curtain beside the window is your destination.