"By the way, both tool casting and pill refinement require fire. What about your fire?"
...
...
Only then did Luo Chen realize that Duan Feng hadn't purchased a large amount of firewood or coal.
Duan Feng said curiously, "In Qinghe Mountain, what we are never short of is fire."
"Hm?"
Next, Luo Chen saw Duan Feng run into the branch office of the Lianyun Business Union.
When he came out, he was carrying a large handful of green grass.
"Qinghe Demon, a First Order wood type spirit, once ignited, the flame is incredibly intense, comparable to earth fire."
"Moreover, the size of the fire can be controlled freely by adjusting the length of the Qinghe Demon's body that's put into the furnace."
As he was talking, Duan Feng demonstrated by stuffing a piece of Qinghe Demon into the furnace.
Crack!
With a small fireball, the end of the Qinghe Demon gradually ignited.