"Tianyu really knows a lot." Liushan commented. "But how can you be sure she has one for each applicant?"
"Because there's no guarantee they'll all stick together. Not every group of six are friends and even if they are, there's still no guarantee. It would benefit them more if they tried to tame demonic beasts separately also, they could be scattered when trying to subdue one. If there were any less contracted beats, the officer wouldn't be able to keep track of everyone and their scores. And having them self-report is also not ideal, since they could lie." Shen Tianyu elaborated her reasoning since the other asked.
"That is indeed a good line of reasoning. But what if she had a contracted beast that can force someone to tell the truth?"
Shen Tianyu shrugged. "Then, I'm just wrong. It's just an assumption based on what I know, it's not like I'll insist I was right when I'm not. In fact, I hate people like that. And they're such a pain to deal with."