Therefore, he has always adopted the practice of having locals manage locals, and he would not intervene himself. Even the Old Demon Emperor was merely a mercenary, as the Old Demon Emperor couldn't stay in other worlds for too long. His goal was to establish a peaceful Empire, so after completing his social structure in practice, he would surely return to his homeland.
By then, the team he cultivated in that world would take over.
On Earth, he only wished to be an ordinary university student, perhaps forever remaining so. If he ever couldn't resist taking action, it would either mean he had fundamentally changed and desired to pursue power, or it would mean a crisis beyond his imagination had emerged on Earth.
...
Right now, he has to consider the underground shelters where people will hide when the entire planet is teleported away soon. Following this, Xue Dili discovered that the sewers in nearly every city were astonishingly large.
