I've Lived for 5,000 Years

When I saw the title, I basically understood the plot. The protagonist is nb, but he is afraid that he is too strong, so he deliberately suppresses his strength and does not reveal his identity. However, there is a big boss who knows the identity of the protagonist and is in awe of him, but the protagonist does not want to reveal his identity. Then a sidekick comes to provoke him, and the protagonist crushes him. Then a female protagonist comes. The heroine does not know that the protagonist is nb, and then follows the protagonist, and slowly learns the identity of the protagonist nb.

Is it a reference to Interview with the Vampire at the beginning?

1. At first glance, when I looked at the title, Thousands of Years of Blood Ancestors, I thought it should be an invincible article, so I ran to read it. 2. I have been following this book, and when I read a certain chapter, it was very embarrassing even if I played the yellow class (according to common sense, the yellow class is the lowest in the world), so I said that the vampires who have been thousands of years old are still the ancestors, and the fighter jets can be so embarrassed.

It's not pleasant to watch at all**