As soon as Cui Yunfeng and the old master were mentioned, Qingniu was very excited. Obviously, it was a glorious period of time that belonged to him. Wang Gan was happy when he heard this, and at the same time he was fascinated. He could not imagine how old master it was. There was only one sentence to describe it, that was powerful, very powerful. As for how powerful it was, it was not something he could understand. As a matter of fact, the vast river of void was like the roaring of millions of dragons. Behind the dragon was a dark and deep projection of the world, which fell on the earth in the blink of an eye.