Spot the Difference

The tree hole of the eastern region hides the head of a female ghost that is covered in blood and grime. The tree hole in the western region is clean, without even a leaf.

The situations in the west and east school districts were complete opposites. An image gradually appeared in Chen Ge's head.

If one compared the world behind the door to a bottomless sea of blood, then this ghost school was an hourglass floating in the sea of blood.

The headmaster of the school made the glass shell to segregate the school from the blood world and then used some means to send the remnant despair in the western region to the eastern region, making the western school region more and more similar to the outside world.

The only connection between the eastern and western school regions was the trash disposal center. The eastern school region was the real testing grounds, while the western region was like a filter that sent out the negative emotions and despair.