Meanwhile, a symbol appeared underneath the entry.
The symbol was made of densely packed faint red patterns.
Casio's gaze shifted slightly, and he understood the symbol's meaning.
"Upgrading limit in progress…
There is still room for the Stone Armor Skill to improve…
Lack of Disaster Essence…
Upgrade failed…"
Casio quickly grasped the meaning of the system's response. The spiritual blood produced by the Wisdom Rune could be used to elevate the limit of one's abilities, for instance, it could raise the two-layered Hard Qigong Stone Armor Skill to three layers. Of course, a prerequisite was that the ability being improved still had room for development.
The failure of the final elevation was quite normal since he only obtained a tiny bit of Disaster Essence. If merely killing a member of Alpha's Direct Bloodline could elevate an ability, Casio would have already established an unbeatable foundation.
