In the course of their investigations, Osanai and Shizuma hear of something called the "hunting club," a group that abducts people and hunts them for sport.
Let's check out who had 
dealings with the old man.
.لنتحقّق من النّاس الّذي تعاملوا مع العجوز
Suchen wir Leute, die mit ihm Kontakt haben.
Cherchons
auprès de ses fournisseurs.
Indaghiamo sulle conoscenze di Rokuzo!
Vamos checar quem tinha
relações com o velho.
Надо проверить, с кем он вёл дела.