Blood Clan! They were also known as vampires.
It can suck the blood of humans or other creatures and obtain great strength and vitality.
The first generation vampire, Cain, created the second generation of purebred vampires, the Archdukes of the Golden Thirteen Families.
After the young man obtained the blood essence inheritance of the Grand Duke of the Golden Thirteen Families, he became the third generation of purebred vampires.
He had begun the path of transcending the two-dimensional world, sucking blood to advance and become stronger.