It's actually a sound of vibration and resonance.
This can be fully explained by scientific reasoning. The Daoist added a description of applying qi to the sword, which naturally invites ridicule.
However, one thing is certain: sword resonance is not something just anyone can achieve. At the very least, the strength you can exert with your wrist must be enough. And it's not just brute force; it requires skill and coordination with the sword's momentum.
So, in the past, demonstrating sword resonance at least proved one's strength in sword practice.
Following this, Chen Han watched as his junior sister began to fiercely execute sword moves.
He quickly recognized it as a sword technique from the Taoist Sect, which focuses on sharp and aggressive moves—the "Taike Swordsmanship." Such a performance technique also makes it more aesthetically pleasing.
It was also at this moment that Chen Dalong and Chen Jun joined in, coordinating their moves with the junior sister.
