If Noah was a descendant of Cain, but turned good, what happened to the bloodline of Noah? How did Cain’s bloodline continue after Noah?

The first time in my life I ever knew the work Annunaki what when I was attacked the first time someone whispered in a physical voice while I was wide awake "Enlill"
I had never heard that name before and when I research Enlil I discovered Annunaki and the rest of this journey began.

Nana, I have recently become interested in the Anunnaki as someone here recently posted something about O blood type being brought here from the Anunnaki from Sirius B, which is my blood type. On top of that I am Rh-.
I'm fascinated..