Yuuki Reiko, member of the Occult Club, barges into the Sket-dan's room holding a picture of one of Kaimei Academy's seven mysteries, the "Ghost of the Incinerator". The Sket-dan are on the case (mainly Switch), trying to find out the truth behind the picture, and getting Shimada Takako from the Newspaper Club mixed up in it, too...
You hear urban legends 
like this all the time.
Todo el tiempo se escuchan 
leyendas urbanas como ésta.
Este tipo de leyendas urbanas
surge todo el tiempo.
Escutamos lendas urbanas
 como esta o tempo todo.