Su Yu had witnessed the power of a Fifth-Order Expert and understood that at that level, even without being in the Time System, one had a powerful mastery over their own destiny.
Although it wasn't that reaching the Fifth Rank meant one could traverse time and change destiny at will, there surely were significant limitations.
But at least, if Su Yu really advanced to the Fifth Rank, leveraging his connection with the Mechanical City, returning to his original time and space would surely not be a problem.
After all, even the Ghost Emperor, a Fourth-Order Top, could send Su Yu here. If Su Yu broke through to the Fifth Rank and still couldn't return, advancing would be in vain.
However, Su Yu also knew that trying to break through to the Fifth Rank was extraordinarily difficult, almost sheer wishful thinking.
He only knew that breaking through to the Fifth Rank required mastery over all the energy of the planet, but for further details, he basically knew nothing.
