As she struggles to get her shinshi, Tomoe and Mizuki, to stop fighting with each other and get along, Nanami decides the shrine itself could use some love and attention, too. A shrine's not much of a shrine if it has no worshipers, and Mikage's have been absent for years, so she comes up with a plan to hold a shrine festival to encourage the locals to visit. But the townspeople think the shrine is a haunted ruin, and Nanami doesn't know the first thing about organizing a festival or performing her role as the current (human) kami, so she and the gang have their work cut out for them.
Aw, Tomoe and Mizuki don't exactly like each other, but they make up enough to understand one another a little better. This volume nicely follows the festival plot while slipping in little moments that hint at backstory and future story arcs concerning Mikage, Kurama, Nanami's mysterious and colorful kami-tester, and a strange young festival attendee clad in black.