Machi Kyouko is a dullahan, a demi-human with roots in Irish legend whose head and body are separate, and one of only three of her kind in the whole world. One day, she stays after school to talk to Tetsuo about herself. She explains that dullahan have unique problems of their own, and also asks a favor of him...

During summer break, Tetsuo asks Sakie to join him on patrol duty for the local summer festival, which both the demis and Himari and her friends go to. As each group decides to check out a nearby shrine, they get spooked by some strange occurrences, which turn out to be each other. As the next term begins, Tetsuo converses with an invisible woman named Matsuri.