Kamisama Kiss Vol. 1 (manga)
Nanami Momozono is alone and homeless after her dad skips town to evade
his gambling debts and the debt collectors kick her out of her
apartment. So when a man she's just saved from a dog offers her his
home, she jumps at the opportunity. But it turns out that his place is a
shrine, and Nanami has unwittingly taken over his job as a local deity!
Nanami has all kinds of new responsibilities she doesn't understand, dangers she's unaware of, and a cranky ex-familiar who's...actually pretty hot. What's a new-fledged godling to do?