Nanami ended up becoming a local land god almost by accident—the previous deity, Mikage, basically handed off his shrine duties to her and vanished. Before that, her life was pretty rough. Her dad abandoned the family to escape gambling debts, and she got relentlessly mocked at school for being poor. So suddenly inheriting a shrine and spiritual responsibilities wasn't exactly a step down, even if she had no idea what she was doing at first.
She doesn't have much natural spiritual power, which means she's constantly grinding just to keep up with the job while also trying not to flunk out of school. It's a lot.
Her relationship with Tomoe, the shrine's fox spirit servant, is. complicated. She gets visibly annoyed whenever he flirts with other women, which he does pretty regularly. He also has this annoying habit of sneaking shiitake mushrooms into her food knowing full well that she hates them—basically low-key messing with her for fun.
Content compiled by AnimeList.moe from publicly available sources.