An Ning was captured by spies from Cang Kingdom, which indeed was due to her negligence.
Firstly, she thought that the spies had been completely eradicated after Xiao Jinxing used Feng Xiyun as bait last time. Perhaps Xiao Jinxing thought the same, not expecting that there were still two spies within the military camp.
Secondly, the spies were indeed clever. She had Guan Yu and Xiao Jinxing's Hidden Guards by her side. Normally, people couldn't get close to her, which was why An Ning was careless, not considering that she might encounter danger within the military camp. However, she didn't anticipate that the spies would disguise themselves as injured soldiers. When An Ning approached them to treat their wounds, she was seized.
Once seized, Guan Yu and the Hidden Guards did not dare to act recklessly.
Moreover, Xiao Jinxing was leading troops in battle at the frontline and couldn't be notified in time.
