C616 Secret
To put it bluntly, Gu Ning had been struck by the Small Destruction Sword. He started to doubt his own martial arts and began to deny it.
This kind of situation was not uncommon in all the worlds in the universe, but most of them had only fallen from a genius to a mortal. It was not to the extent where Gu Ning had fallen.
At that time, Gu Ning had already entered into a dead end