Chapter 379: Inside The Small Bar

A sonic attack wasn't considered a spell among cultivators.  Technological civilizations developed sonic weapons, and there was some interaction between cultivator and technological civilizations in the starry realm. So, some bored cultivators studied sonic weapons and devised a sonic spell.  Cultivators could use a sonic spell at the seventh or eighth level of Energy Refinement, which wasn't complicated. When cast, this spell produced super strong sound waves. However, unlike the sonic weapons...