Inside the room.1

An idea struck Su Yu. Perhaps he could turn his book into some sort of converter. With the book and his acupoints, he would be able to produce a large amount of heavenly source qi.0

"Instead of using the produced heavenly source fruit, I can gather enough to produce heavenly source fruits instead."5

Su Yu's eyes lit up. Would that work? It was worth trying! It was then that Su Yu realized that there were a lot more things he could do with his book. He merely needed to discover them.0

"With enough heavenly source fruit, I can cultivate any body forging art I want. I can even supply some to others. Perhaps I should start producing and selling heavenly source fruits as well?"0

Su Yu decided to test it out immediately. He took out a drop of garbage iron-winged bird blood essence. He still had a lot of iron-winged bird blood essence left. To activate the body forging arts in his book, the blood essence must not be weaker than the Skysoar...4