Tanuma gives Natsume some clay, and he tries his hand at sculpting a figure. However, the next day, the figure has disappeared, and other strange things are happening in the house. Is a Yokai causing mischief in the house? Or is it just a rat?
In a flashback episode about Shuuichi Natori's late teenage years as a self-taught exorcist, he meets Urihime and made his personal shiki, as he did not want to free her from her loneliness by exorcising her, as she had wished.