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...
A girl named Shimada-san 
there is Miss Yuuki's friend.
Busca a una chica llamada Shimada-san,  
es amiga de la señorita Yuuki.
Busca a una chica llamada Shimada-san,  
es amiga de la señorita Yuuki.
Uma garota chamada
 Shimada é amiga da Yuuki.