Within the silent Ice and Fire Yin Yang Well, the system interface in Ao Yin's mind slowly lit up, cold mechanical text clearly appearing before his eyes.
[Remaining sign-in attempts: 1]
Without the slightest hesitation, Ao Yin steadied his mind and directly issued the command in his heart.
"System, sign in again."
A crisp system notification immediately rang out, echoing through the depths of Ao Yin's mind.
[Ding! Congratulations, Host, for successfully signing in at the Ice and Fire Yin Yang Well. You have obtained a Level 5 reward—Yin-Yang Protective Divine Aura (pending activation)!]
Immediately afterward, a lengthy and detailed explanation of the ability flooded into Ao Yin's mind, clearly imprinting itself upon his soul.
The Yin-Yang Protective Divine Aura was a divine protective ability.
It was not naturally born, but derived from the fusion of humanity's two most supreme ancient sacred physiques: the Lunar Sacred Physique and the Solar Sacred Physique.
It combined all the innate characteristics of both sacred physiques, allowing yin and yang to complement each other and rendering it immune to all techniques.
This divine aura's protective ability was not constrained by the rules of heaven and earth or the laws of the myriad paths, and its growth potential was terrifyingly high.
Once cultivated to the peak of perfection, it could withstand even terrifying god-level attacks head-on, granting physical defense of the utmost tyranny.
Ao Yin could not help but draw in a sharp breath, his heart filled with shock.
God-level combat power was far too distant from his current self, so he could not yet fully comprehend the terror of this divine ability.
But he was more familiar than anyone with the reputations of the Lunar and Solar Sacred Physiques.
The Lunar Sacred Physique was exceptionally rare in the world. It