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.
Hifumi, you never take 
things seriously enough!
!أنت لا تأخذ الأمور على محمل الجدّ بما يكفي
Du solltest das ernster nehmen, Hifumi!
Te tomas todo demasiado a la ligera.
Podías tomarte algo en serio
por una vez.
Tu prends vraiment tout
à la rigolade !
Sei fin troppo spensierato, Hifumi!
Hifumi, você nunca leva as coisas a sério.
Хифуми, ты слишком беззаботный!