Muhyo & Roji's Bureau of Supernatural Investigation

Muhyo and Roji arrive at the Magical Law Association so Roji can take the promotion exam, and for whatever reason, Nana has come along with them. They're greeted by Muhyo's former classmate, Yoichi, who mentions a name that seems to strike fear into the hearts of those who hear it. The gang's concerns become reality when a spirit appears during the exam briefing...