Gu Xijiu revealed her identity without any delay. She was also very straightforward; she had an open and honest conversation with the Emperor Immortal.
Unfortunately, Gu Xijiu found that the situation was really disadvantageous for Long Siye. There was a large stack of evidence in the hands of Emperor Immortal. There were confessions from those who were once the subordinates of Yun Yanli. Those people reported that Yun Yanli planned to rebel. They even provided a list of allies.
In recent months, Long Siye and Yun Yanli had also had contact. Although his name was not present in the so-called alliance, he was also a suspect. Long Siye had never reported the fact that Yun Yanli was still alive; even though he did not join in his alliance, he had committed a crime for keeping it a secret. Hence, it was not a mistake for the Emperor Immortal to put Long Siye into prison.