"Boom!"

In just a breath's time, the air was suddenly filled with lightning, and faintly, the sound of thunder echoed, resonating throughout the surroundings and causing one's scalp to tingle.

At that very moment, the seal in Du Fei's hand was completely formed. He lifted both hands, forming a bizarre seal, and fiercely slammed it downwards!

"Sixth-grade martial technique, Thunder Cannon!"

With Du Fei's motion, the lightning that had ...