The time since Jia Yun was taken, it's only been a few days. If nothing is done within these days, Jia Yun will be taken to the Great Tang Prison.
By then, trying to get Jia Yun out of the Great Tang Prison will not be an ordinary difficulty. It would be impossible to continue investigating this matter, and once Jia Yun dies, there would be no evidence to prove anything.
"Logically, we shouldn't let the true mastermind go unchecked like this. Otherwise, today's events will continue to recur in the future. But Jia Yun insists that he was the one who killed, even providing Ling Huzhong's belongings as evidence..."
"So we can't possibly learn who is truly behind this from Jia Yun's mouth. The one who's backing him must be frighteningly powerful, possibly not just one person, but an entire force."
"If we jump recklessly into this situation, we might not be able to resurface."
This was the point Yuchi wanted to express.