Manga and Anime Report: Doctor Who character "River" may be the Mother of Death Note's "Nate River"..she was sent to terminate The Doctor, right?

Manga and Anime Report: Doctor Who character "River", a Shinigami may be the Mother of Death Note's "Nate River"..she was sent to terminate The Doctor, right?

...Shinigami Rem, a not a "female" yet called "Chrona" when resting...actually Chronos of the Greek, also "Osiris" the Shinigami King of Egypt...and Cyrus II...King of Persia...King Cyrus II we once met as teenagers, though we were just friends, Nate was still a soul, a Light, from our friendship...

Mind you, I was the Teenage demi-God Chorno...she possibly saw Osiris...I eventually attended Pomona College:

I am possibly