Li Xiu learned from Chu Jun that the level advancement of a Trial Taker actually mainly depends on the Symbiotic Contract.
When the energy accumulation of the Symbiotic Contract reaches a level sufficient for advancement, the level will naturally advance, unlike the Parasitic Contract, which requires a certain opportunity to elevate the level.
The process of energy accumulation in the Symbiotic Contract is actually the process of humans enhancing their Primordial Embryo Quality. Because it is a symbiotic relationship, as the host enhances their Primordial Embryo Quality, the Symbiotic Contract also siphons off a portion of the energy and enhances along with it.
Li Xiu looked at the Primordial Embryo Qualities of the Evil Spirit Token and the Forbidden Spear and found it indeed to be the case. Both of their Primordial Embryo Qualities had reached the same level as Li Xiu, at 2.0.
