There’s a syncretic folk religion that is catching on in Mexico and America. It’s a cult devoted to
Popularity has shot up because followers believe she’s done miracles. Her mythology isn’t set, but some suppose she is some kind of fallen archangel. The followers are predominately women in places that have become disillusioned with the institutionalized Catholic church.
Wikipedia lists her under folk saints – popular fictional saints that certain Catholics believe in. They are basically mini-gods, not unlike ancestral Gods or Japanese Kami.
Some mainstream examples of series which appeal to boys and that are centered around death gods are “Death Note” and “Bleach.” In both series shinigami are the main characters.
In “Death Note” a law student acquires a book from a shinigami, and whenever you write their name in the book they will die in the manner written in the book. He then plays a cat and mouse game with a detective who is trying to arrest him for his murders; neither can kill the other because they don’t know one another’s identities for a hundred chapters.
In “Bleach” a guy dies and becomes a shinigami that fights impure spirits and tries to purify them, hence the name “Bleach.”
Likewise, in “Tsurebito”, (translation: “one that conveys”), a girl dies in an accident and offered a choice: she can either go to the afterlife, or becoming a shinigami and protect the souls of the departed on their journey to the other side. After a shinigami helps her, she chooses to do that, partly because she wants to remain on Earth longer so she can spy on the boyfriend she left behind.