In order to use the Sun Moon Furnace for cultivation, Huang Xiaolong had to first refine the item. 

The Sun Moon Furnace belonged to Zeng Lei, but now that Zeng Lei had submitted to him, Huang Xiaolong wiped away his soul’s brand on it in an instant. He spent the next few days refining the pill furnace.

Soon after, he entered the inner space of the Sun Moon Furnace. Sitting down cross-legged, he started to cultivate. At the same time, he got Zeng Lei and the others to instill their cosmos energy from the outside world onto the Sun and Moon Grand Array to assist him.

The Dragon Fish Creed Patriarch, Bi Cheng, and the others laid down the Supreme Grand Dao Array...