A prostitute from Hananoya, O-Taki, has been killed. When Takuboku says, "I saw Kyousuke in O-Taki's room," Kyousuke becomes a prime suspect. Meanwhile, based on the fact that Takuboku's romaji diary was left in O-Taki's room, Kyousuke begins to suspect that Takuboku might have done it. Where does the truth really lie?
Woodpecker
 Detective's 
Office
مكتب
 نقّار الخشب 
للتحرّيات
Woodpecker Detective’s Office
Woodpecker Detective’s Office
Agência de Detetive Kitsutsuki
Детективное
 агентство
 «Дятел»