Though the Great Kyushu Realm emphasizes both technology and individual evolution, neither technological methods nor secret techniques possessed by certain groups can allow a fleshy body to traverse underground depths directly.
Even a First-Level Star Space Warrior at the Eleventh Stage or even the Twelfth Stage must rely on a Boring Machine to move deeply underground.
Of course, certain special groups are exceptions, such as the Treant Race.
But in truth, even if strong Treant warriors can enter the underground depths without a Boring Machine, their speed would be greatly limited. The notion of being as nimble and swift as fish in water is absolutely impossible...
It was due to this realization that Chen Tang immediately thought of the Earth Talisman.
This is the only explanation, otherwise Tu Xingsun of Star Ruins' ability would be too abnormal, entirely unreasonable, unscientific...
