A series of missing children incidents has occurred among the merchant families in town, but each of the children has returned in a matter of days. And yet, the client's child has been missing for a month. Kyousuke takes on the case in place of Takuboku, who's health is poor, and drags Sakutarou and Kodou into the investigation with him. While they're doing that, the client's child suddenly returns. Is this case closed? Meanwhile, the incidents involving letters of accusation thought to be finished with Tamaki's death start up again. Takuboku sets out to discover the true identity of Accuser X.
How do they know that when they 
haven't caught the perpetrator yet?
وما أدراهم بذلك وهم لم يقبضوا
على الجاني بعد؟
Woher weiß man das,
obwohl der Täter noch nicht gefasst wurde?
¿Cómo lo sabes?
No atraparon al culpable, ¿no?
¿Cómo lo sabes?
No atraparon al culpable, ¿no?
Comment le sais-tu,
si le coupable court toujours ?
Come lo si è scoperto, se l'assassino non è stato catturato?
Como você sabe disso sendo que
ainda não prenderam o culpado?
С чего они так решили?
 Ведь убийцу ещё не нашли.