Ancient Dragons

Seeing Joy's wavering worry, Cain decided to give the final push. He secretly stimulated his Soul's Core, silently gushing out the incomparable prestige of a Dragon Might. 

This was actually just Cain's inborn Soul pressure that carries the purest genes of previous Dragon God Ancestors.

Such might couldn't be endured by any ordinary humans. And, of course, lower-level monster species bloodlines wouldn't be able to efficiently deal with it.

Upon experiencing this Dragon Might, Joy, Amiel, and even Amber only felt a slight pull towards Cain. Their eyes stare unblinkingly at him.

The Dragon Might didn't suppress but rather acted as a charm, similar to Gao Hiyashi's bloodline charm abilities. 

Wanting to submit to a Dragon Might was natural. It was nearly similar to the nature of their world. The weak will worship the strong, treating them as fable gods or emperors, falling completely in line with the natural order.