Tomoe's been coming to school with Nanami to watch over her since her run-in with Mizuki, but he's not very good at "laying low" and draws a lot of admiring attention from the other girls in class. Worldly-wise Kurama takes him aside and tells him to watch out or Nanami will fall for him, too. Incredulous, Tomoe laughs such silliness off, but the tengu's warning proves well-founded. Later, a trip to the beach leads to Nanami once more travelling back to the past, this time to save the object of her unrequited love. But what she sees there only confuses her even more.
Poor Nanami, in love with a guy who says he refuses to get romantically involved with a human. The reasons for his intransigence on the matter are a mystery, but she's a proud young woman and does her best to move forward and deal. I love how Mizuki, who formerly tried to force her to marry him, gives himself renewed purpose in life by sneakily making himself her second shinshi and so becoming a part of the Mikage shrine family. He was lonely and masterless before, so it makes me happy that he's neither anymore.