Jakurai goes to Nagoya to look for clues about TBH and runs into Hifumi and Doppo. Hifumi is working at the Nagoya branch of the host club. When they hear that club patrons have info on TBH, Jakurai, Ichiro, Kuko, and the others go help out at the club.
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.