This is the limitation of the Heroic Spirits, for they seem incapable of perceiving the immaterial world and the Dark Matter World. This inability to perceive across different dimensions appears to play a decisive role; once they are unable to perceive, they can't even make contact, therefore the option of Heroic Spirits for exploration was directly negated.
So naturally, the most suitable are the Eligible Ones' squads.
Hao Sheng spoke earnestly, "Many people have called us, the Eligible Ones, the new humans. Not only outsiders say this, but many of us believe it as well. I don't want to preach any grand principles here, nor do I want to stress on discipline. I just want to ask... If many of you consider yourselves new humans, shouldn't you lead humanity to its highest morals and aspirations? If we are the new humans, then we should set an example!"
