All the endless spiritual energy in the crystal was absorbed by Ning Cheng, and then repeatedly tempered by the golden elixir. In just half a stick of incense, Ning Cheng's golden elixir returned to the state before spontaneous combustion. A faint golden color swirled above the Dan Lake. Ning Cheng didn't have to work hard at all. His cultivation reached the seventh level of the Xuandan for the second time....