. Cheng Ziton and Cheng Zihao, brothers, walked out of the elevator and immediately saw their father, Cheng Liwei, sitting at his desk in the distance. 。Cheng Liwei's hair was almost entirely white,...engers trembled. This Liu Hai, the world's number one, threw a stone like a real cannonball, exceeding seven hundred meters per second. 。This is a speed that makes even other Tier 3 masters despair....