Apparently, Kinra Island would always resurface in an extremely dangerous territory filled with many ferocious beasts that even some beings at the Specta stage feared.
As such, it was required to have someone strong enough nearby, who could protect them if something were to occur.
Jason had already realised it the moment the City Lord had said that she would take them with her.
Because it was necessary to be guided to the entrance of the Island by a being at the Specta stage, only a small number of mostly powerful individuals would be able to enter it.
Amongst those individuals, the majority were likely to be the Specta stage powerhouses' disciples, which was what everyone clearly understood.
Owing to that, Jason was not sure if it was really logical for him to accept the City Lord's proposal, even if she were to hand out a Heaven-ranked manual.