As a matter of fact, Old Man Mu was well aware of Shangguan Ru's suspicions, so he quickly explained the acupoint technique that he was about to teach, "Don't get me wrong. The acupoint technique that I will be teaching you is the Finger of Immobilisation. Other than paralyzing the opponent for 2 to 4 hours, there is no other harm to this Kung Fu."
"I don't know how to recognize acupoints."
Golden Roc Fort had focused more on killing methods and looked down on other types of manuals. Shangguan Ru could only recognize some of the more important acupoints and did not even know the names for the rest of them.