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!

Himemiko and Kotaro's happy ending has triggered some confusing flashbacks for Tomoe, and his memories are affecting more than just his mood. The shrine has started to collapse because Tomoe isn't strong enough to maintain it, and things have gotten so bad that the kami Mikage returns. He explains to Nanami that Tomoe is dying from a 500-year-old curse, and there's nothing she can do to save him!