https:// media.8ch.net/file_store/b4f05f4124101f1d7629d8389f4141c98846c89da7046ec597051e692f02bf4a.png
Ch15 and 16 look like "mirror" images of the same room.
Also, both appear to have "mirrors" on the wall.
Two way mirrors?
What is the square thing shown right side of Ch 15 image and left in Ch 16?