In fact, it's because Fusang Wood has a conflicting emotion towards the "Red Cloud Jade Book".
As for the other two cultivation techniques, because they aren't as closely related to Lu Yao, Fusang Wood is more inclined to approve of them.
"So it seems, Fusang Wood and that Lu Yao have a deep animosity, huh." Old Man Bai suddenly understood, "What's going on with the Nine Luminaries Heaven?"
Tang Lingwu, hearing this, glanced at the previous experiment records, also puzzled: "When Zheng Fa previously mentioned Nine Luminaries Heaven, the reaction Fusang Wood showed..."
"It was approval, pure approval!"
She paused, seemingly feeling that the word 'approval' wasn't enough to describe the intense reaction of Fusang Wood, and went on to say: "One could even say, it's desire."
Recalling the scene where Fusang Wood seemed to want to fly out of the Preaching Hall, Zheng Fa also thought that 'desire' was a well-chosen word.
