Because this already signified that these people had defected. According to the rules, after the events at North Mountain were leaked, they were supposed to kill the enemy immediately, and if they couldn't overpower them, they should have killed themselves to ensure that they didn't implicate Nan Batian. Yet, here they were, alive in front of both armies.
That meant these people had defected.
A trace of panic flashed across Nan Batian's face, but he quickly concealed it, casting his gaze around.
On the left was Liu Laoguai guarding, and Liu Laoguai's strength was formidable; it wouldn't be easy for Nan Batian to quickly determine the victor between them.
On the right was Chen Jiusi; his strength shouldn't be weak either. Although Nan Batian could defeat him, escaping swiftly would prove difficult.
Breaking through the front was Qimu Ge, whose strength was likely comparable to that of Liu Laoguai.
