Everyone had to be very careful when raiding due to the fact that there were players from other servers in this castle. They had to prepare to encounter human-controlled bosses and high-level players that might have crossed over from another server by a World Call Line event… or crossed over by a Jewel-level aircraft.
The atmosphere of the Shadow Castle was spooky. This place did not have the system announcement of spawning monsters. There was only a wailing sound in the distance. The light from the upside-down candlestick mingled with the moonlight shaded through the glass window. Every step passed through countless graves and skeletons. If considerate of all the places Tan had encountered, this place was regarded as a place that made the hearts of those who had to walk through it beat fast.