How about now?
Now Song Da Meiren has spoken! So it turns out the Great Tang Prison is suppressed by the other three institutions? They're prohibited from recruiting disciples from anywhere, or else a great war would break out?
"That being said, Han Ming's identity is questionable, she might not have been openly accepted into the Great Tang Prison. It's possible her ancestor made a mistake, then became someone important in the prison, and then treated the Great Tang Prison as their home, allowing her to develop within it?"
Yuchi quickly pondered, and indeed, coming to seek Song Da Meiren was the right decision. If not for her, he wouldn't know when he could learn about these things.
As he was thinking, a question arose for Yuchi: "So, does this mean the Great Tang Prison and the Defense Department are essentially separate entities?"