Li Guzi looked at the small grass moving around in the bottle, emitting a green glow. He instinctively felt this thing was important.
Li Guzi handed the bottle to Shangguan Xuanyi: "Prince Rui, take a look!"
Shangguan Xuanyi took a glance and saw a small grass with three leaves jumping around, almost like a human shape.
"This is the soul nourishing grass!" Shangguan Xuanyi had also read books about souls in Xiao'er's space study room and knew some basic knowledge related to soul exchange and controlling souls.
But even if it's as powerful as the space study room, and the books inside almost cover everything, there's still no information about how souls are controlled, how they exchange or wake up.
Because such secret techniques are too heaven-defying! The founder who researched these secret techniques demanded them be passed down orally, so there was no textual record.
So even in Xiao'er's space, there were no records about the soul secret techniques.