To tell the truth, Zhou Sui was immensely looking forward to the formation of his Immortal Spirit Root, uncertain about the extent of transformation and improvement it would bring to him.
"Indeed, the progression of the various Gu Insects on my body isn't too significant."
"It's pretty much on par with my own cultivation level."
"It seems that for them to breakthrough, they would still need some fortunate opportunities."
Zhou Sui sensed the dozen or so Gu Insects on his body, each containing formidable strength, unfathomably deep, as if holding the power of Heaven and Earth Laws within.
To tell the truth, for a Great Unification Ability, a mere three hundred years is far too short; there's generally little improvement in cultivation, so the Gu Insects on him haven't changed much, remaining in their original state.
The only significant change was the Dream Soul Gu, which astonishingly ascended to the Middle Grade of Eight Stages.
