Become Invincible from Traveling Through Time into a Black Dragon

What is it like to travel to another world and become a black dragon? ! "You can become stronger even if you lie still, your scales are harder than steel, you are born with supernatural powers... And by the way, you can also breathe hot breath from your mouth!" - Ao Heng. "..." This is the story of a black dragon with an evolution system that can turn into a human and stirs up troubles in the Eastern Continent. There are dynasties, warriors, and strange beasts here! But the honor of the mythical beast as a powerful ancient clan has long gone...