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...
That was without a doubt a spirit manifested 
in this world... In other words, a ghost-nari!
¡Era sin lugar a dudas un 
espíritu que se ha manifestado
¡Era sin lugar a dudas un 
espíritu que se ha manifestado
Tipo, sem dúvida era um espírito neste
 mundo... Tipo, ou seja, um fantasma!