After seeing her in a dream, Kazuhito recalls his younger sister Harumi Madoka. His nostalgia is cut short when Akiyama Shinobu's editor Hiiragi Suzuna appears, a massive masochist with huge breasts prone to fantasizing. What's worse, Natsuno is in a slump?! As they discuss how to get over her slump, the subject of a mysterious slasher case arises.
However, lurking in the shadows of the incident are glimpses of Akiyama Shinobu's book and Madoka...
Your book is related to all 
three slasher incidents.
Alle drei Fälle des Messerstechers stehen
Tu libro está relacionado 
con los tres incidentes.
Seu livro está relacionado a todos os 
três incidentes do esfaqueador.