Good and Evil
The moment that Lan's eyes landed on the branch leader, the ghost could not help but feel his body tense slightly. He laughed at himself with some mockery and disdain as he realized that this was the most nervous he had ever felt, but he could not stop these uncontrollable feelings.
No ghost wished to stay within the Ghost Realm. It was a barren and desolate place that would challenge anyone's mind to their limits. If one did not have a ferocious will to survive and a hope for a future, they would easily succumb and turn into nothingness, becoming the energy consumed by others, and vanishing from the world forever.
"The reason we could enter this world is due to Xue Wei being a Rulebreaker. These entities are ranked based on which rules their existence has broken, and the amount of people they can bring with them out of this realm also depends on the rank reached.