rumor of a mysterious man wearing military clothes who is seen carrying a basket box. Because of his strange appearance, people begin to think he might be connected to something supernatural. Kanna becomes curious and investigates the story, and Chuzenji-sensei later analyzes the situation. In the end, the mystery turns out to be connected to a case involving fake ceramics, showing that the suspicious behavior and rumors were actually related to human deception rather than anything supernatural.