The residents already know that she is Song Huo's Junior Brother.
For her to be involved in the matters of the clan, she at least has to call herself an ally of the Song clan.
It would no longer matter how great of a role she will play in the Song clan's matters to the residents in general. As long as they will be assured that she was not there as a spy or would have designs to harm them.
Merely as Song Huo's Junior Brother, she would only be regarded as a visitor and wouldn't be privy to the clan's internal matters.
Even if the Masters would seem to trust her, the residents would be wary of her.
Which is why she had changed her mind and followed Song Huo out of the Book Pavilion.
As expected, the Song clan members were surprised to see her come out with Song Huo.
They whispered among themselves.
"Why is Master's Junior Brother with him inside the Book Pavilion?"
"Yeah.. that place is only exclusive to the Masters.."