C342 Sound-killing Nine Songs

"Hmph. You think you can block my sound waves just because you sealed off your own hearing?"

By the river bank, Gu Qingcheng looked at Cheng Feng who was slowly approaching and smiled coldly: "Next, I will let you have a taste of the pinnacle of Sound Killing techniques, the taste of Sound-Killing Nine Songs!"

As they spoke, behind Gu Qingcheng