C858 Otherwise Su Wan Would be Buried with Me

Gu Xi's facial expression changed slightly when he saw Nie Kai's action.

"My men said that Nie Kai has been researching poison for the past few years, and his men have basically all been injected with it. They will die if they are not regularly injected with the antidote. That's why so many people risked their lives for him..."

He had fought with Nie Kai for so long, so naturally