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.
Looking back, that failure 
was a learning experience
بالنّظر للماضي، كان الفشل لحظة تعلّم من التّجربات
Rückblickend war das Scheitern Lehrgeld
Los fracasos son
la moneda para aprender.
los fracasos
son la moneda para aprender.
Cet égarement,
c’était édifiant, finalement
Aqueles fracassos, pensando
bem agora, viraram aprendizado
Теперь знаю, поражение —
Это плата за науку.