Zhou Hongyu employed the Art of Godly Movement, her speed swift as the wind as she flew through the long corridor, leaving behind only the faintest sound of her footsteps.
Though the sound was slight, the narrow corridor acted like an echo chamber, allowing the sounds to be clearly transmitted into the distance.
The speed of sound is about twenty times that of the speed of Godly Movement. Thus, even though she had not yet appeared within Yan Yu's Divine Sense detection range, the sound had already traveled ahead through the space within the corridor.
Yan Yu was all too familiar with the footsteps of the Shifting Technique. In his previous life, he did not possess the Cloud Dividing Eight Trigrams Step but relied solely on the Shifting Technique and Cloud Ascension Technique for high-speed movement, so he quickly deduced that someone was approaching using Shifting Technique.