Liu Hong knew that Bai Qingyan took all the surrendering Liang soldiers with her to reduce risks for him and Bai Jinzhi.
But Liu Hong couldn't help but worry about Bai Qingyan. Bai Qingyan didn't bring the Anping Army or the Jin Army...those under her command were all surrendering Liang soldiers, and Zhao Sheng and Yang Wuce were both great generals of Liang Kingdom. If they were to change their allegiance midway, Bai Qingyan would have only a few thousand Shuoyang soldiers under her command, which would be precarious.
Bai Qingyan assured Liu Hong to feel at ease as she trusted the character of Zhao Sheng and Yang Wuce.
Moreover, Zhao Sheng's family was now in Bai Qingyan's hands, and as for Yang Wuce...if he truly intended to betray her, he would not have taken such extensive consideration before promptly surrendering within a month!
