C231 The Power of the Nans

After listening to the System's words, Su Xiao felt very surprised. He never thought that he would be able to obtain 500 Knowledge points just by killing a person.

However, Su Xiao knew that this wasn't the time for him to be happy. The danger hadn't been resolved yet, and he might be discovered at any time.

Therefore, after killing Zhang Er, Su Xiao quickly left that place