According to Vil's meticulously planned scheme, the Eye of Delphilis indeed required the sacrifice of all Dorey City residents, along with five Gold-level Hunters, to awaken.
Vil had mentioned that due to the premature activation of the Eye of Delphilis, it was necessary to sacrifice everyone and every monster involved to achieve perfection.
And yet, Ed didn't need to do anything. The Eye of Delphilis fused directly into his body, accelerating his cultivation speed when he used moonlight for his meditation technique.
This was completely abnormal. Ed felt certain that the Eye of Delphilis had more to it than just increasing his cultivation speed—there must be other effects, though he hadn't yet discovered them.
As Ed was deep in thought, the door to his room suddenly knocked. Eng's voice came from outside:
"Mr. Ed, are you awake?"
Ed pushed aside his concerns about the Eye of Delphilis and opened the door, looking out at Eng.
Eng briefly explained why he had come to find Ed.