chapter 478 The state of Qi refining!

boom!!! As this cold voice sounded behind the Four Guardians of Shitian Palace, There was also an ear-piercing sound of air explosion behind him, and his back felt cold, as a strong breath of death enveloped him. The middle-aged man immediately gave up attacking Xuanyuan Bubai and turned around and punched out. BANG!!! A dull sound like thunder rang out. The middle-aged man's fist collided forcefully with the other man's fist. Waves of terrifying power burst out from their fists and...