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.
So that the Narita-ya child, who has already 
started walking, and her own child
وذلك لإمكانية تبديل طفل ناريتا-يا
الذي بدأ بالمشي بالفعل
Damit Sie ihr Kind mit Ihrem Kind,
was schon laufen kann,
Para intercambiar al niño de Narita-ya,
que ya caminaba,
Para intercambiar al niño de Narita-ya,
que ya caminaba,
afin d’échanger aussi naturellement
que possible son propre fils
per poterlo scambiare nel modo più naturale possibile
Assim, daria para trocar o
próprio filho pelo filho dos Narita
Чтобы ребёнка из Нарита-я
можно было легко поменять