Noah and June didn't let the sadness that lingered in the area make them waste the few years they had before the mission. They cultivated and remained together without ever leaving each other's side.
King Elbas and Luke contacted the forces of the human domain, and they settled for a period of one hundred years to prepare for the mission. All the experts had to polish their techniques and plan life-saving abilities in case something went wrong.
A lot could go wrong in a mission like that. Everything could even be a trap set by Heaven and Earth. Noah and the others weren't even sure whether the human organizations would turn on them.
Other worries also lingered in their minds. There was a chance that the human organizations and Heaven and Earth had been honest about the whole matter. The troubles on the other side of the Immortal Lands could be far more threatening than anyone expected.