TBH appears again before Ichiro and the others. They say that if they're beaten in a rap battle, they'll spill everything they know. Ichiro, Samatoki, Ramuda, Jakurai, Kuko, and Sasara accept the challenge. After the battle, the mastermind is revealed.
the Director of Corrections 
for Chuohku, Shuro...
...مديرة إصلاحيّات تشووكو، شورو
Shuro, die Akira und Satoru
auf dem Gewissen hat,
la directora de Prisiones de Chuohku,
Shuro,
la cheffe du bureau disciplinaire
de Chûô, Shuro.
sul Capo del Dipartimento
di Correzione Shuro di Chuoku,
foi a Diretora de Correções
do Chuohku, Shuro.