My Ancestors Are Very Powerful

What will happen if you travel through time and become the ancestor of a family, and when you die, you have the resources of an entire different world to back you up, and there is no human presence in this world? People in the family claim to the outside world that my ancestors are very powerful, so don't mess with me! However, the protagonist wants to say: It is really tiring to lead this group of people, keep a low profile, keep a low profile, please tell the old man to keep a low profile! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.