The sky was full of stars as Xu Nian continuously executed the sword moves of the "Gale Sword Technique" in the courtyard.
Under the illumination of the moonlight, the sword light kept flickering, like dancing spirit snakes.
The main secret of the Gale Sword Technique lies in a single word: "swift."
The sword must be fast, so fast that it forms afterimages.
Three afterimages are considered entry-level, reaching six afterimages is proficient, and nine afterimages would mean mastery.
When the afterimages reach twelve layers, it is the time when the Gale Sword Technique reaches the Subtle Realm.
At present, even with all his might, Xu Nian could only display three afterimages and could not manage to display the fourth.
According to Emperor Ye Tian, the time when Xu Nian could combine twelve afterimages into one would be the moment when the "Gale Sword Technique" truly achieved Divine Transformation.