I see and I think you are correct atheism is ultimately a useless word as it only tells you what someone does not believe in not what they believe in.
It’s better to divide it into two categories, spiritualist, and materialist.
She obviously is not a materialist as she lives in a world we’re inmaterial is merely a matter of course. She would probably fall under the category of spiritualist. She believes in the immaterial the spiritual but doesn’t believe in divine authority or follow any divine law other than her own preference . Or something like that at least. Honestly, I’m not sure we have categories for her. She does seem to believe in some kind of divine authority (the title god is a title of authority after all) she just seems to ignore it.
Except for most atheist, don’t use those terms seriously. As it would imply that both nuclear weapons and particles are thinking agents. Are you implying that she doesn’t believe that Todum is a thinking agent?