Ki and Gil will enter this room through either the first door at the top-left of it (if they had came from Blue Court), or the second one at the top-left of it (if they came from Store Room). It contains total three Sorcerers, two "Pink" Ropers (which are white), ten Silver Hyper Knights and one Land Urchin.
The second key at the top of the room opens the aforementioned first door at the top-left of the room, the fourth key at the top of the room opens the door at the top-right of the room - and the fifth key at the top of the room opens that aforementioned second door at the top-left of the room. None of the other four keys at the top of the room open any of the doors in the room, meaning that they are only there to confuse the room's first-time visitors.
The aforementioned first door at the top-left of the room leads back to Blue Court (Room Pass: 2VY, same as Shrine of Evil), the door at the top-right of the room leads to Guest Chamber (Room Pass: 737 - same as Forgotten Room) - and that aforementioned second door at the top-left of the room leads back to Store Room (Room Pass: Y32 - the same as Passway). You should remember the second of these Room Passes for later in the game.
