Poor Emperor. He didn't know that it wasn't General Yuan who was plotting a rebellion, but Qi Xiuyuan.
Although General Yuan was arrogant and often disobeyed the Emperor's orders, he only wanted to recover their country's territory and serve the Imperial Court and leave his name in history. He had no intention of rebelling at all.
However, the young and energetic Qi Xiuyuan had his own ambitions. He appeared weak and was willing to listen to the Emperor's orders, but he had been preparing to rebel for a few years.
When the letter was sent to the generals, everyone was first angry, then helpless.
They could understand why a general with military power outside was made to leave his family in the capital, because even they would probably do the same for a peace of mind. However, it was too much to summon their families to stay in the palace, for this demonstrated great distrust in them.
