Last year, the Emperor decreed that all the Princes should return to the capital for the New Year. Except Prince Han, who had ulterior motives, did not return, and neither did Prince Yue.
Prince Yue stayed in Bingzhou, guarding Ya'men Pass, and could not leave easily. Since he went to Bingzhou, he has never left.
Now, Prince Han and the Xiongnu army have already attacked Ya'men Pass.
Prince Han does not want to spend much time and manpower on attacking Ya'men Pass. Moreover, Prince Dai has agreed to cooperate with him, so he could also cooperate with Prince Yue.
He originally thought that by bringing out Prince Dai, Prince Yue would comply obediently, but he did not expect Prince Yue to dare to put on airs, which made Prince Han quite angry.
Prince Han offered many favorable conditions, but Prince Yue did not readily agree, clearly wanting more.
