"ENEMY ATTACK! ENEMY ATTACK!!!"
A tremendous roar echoed across the sky above Yu City. The sound was deafening, powerful enough to make one's organs tremble and their Qi and Blood boil.
This was the power of a Bone Marrow Cleansing Grandmaster who had cultivated a Sound Wave Technique. It allowed their voice to travel much farther and was a mandatory skill for military generals.
Generals who controlled entire armies naturally needed to relay their orders to every corner of the battlefield. Transmitting commands through hand signals was simply not as convenient as using one's voice.
After all, people appeared smaller and became difficult to see clearly from a great distance.
Even with auxiliary methods like battle flags and war drums, nothing was as fast as this Sound Wave Skill. Moreover, this kind of Sound Wave Skill could temporarily augment a person's Qi and Blood, thereby increasing their combat power.
