Since the first game is by No1game, you are supposed to catch ten green men as usual. After a successful escape you'll find yourself in Yomino Kagura's room filled with devices, and then, suddenly, you'll stand in a middle of desert in Esklavos' land of dreams which can be escaped
only through a magic gate. Jan's Room's room is placed in a back area of a cosy bar and it's technically a double escape - first you need to overcome the office door and then the bar door.
Have a good time and enjoy!