Why was it known that these two were siblings?
Mingshu certainly wasn't guessing blindly.
In fact, in the original work, this pair of siblings had their own names and surnames, and they played no small part in driving the plot forward.
Brother Banjin was smooth and well-connected, with a broad network that extended from Nobles to street beggars; he was acquainted with people from all walks of life.
As for Baliang, who didn't seem very remarkable at first glance, she was even more formidable; not only did she possess exceptional martial arts skills, but her technique of Sky Exchange was also incredibly refined.
In the original work, these siblings were ultimately persuaded by the heroine's character, willingly joined her cause, and played an extremely important role in the rebellion, getting much more screen time than the original cannon fodder protagonist, making them very significant supporting characters.
