The lines on the demon box in his hand gradually became clearer, like ripples of water forming into an artifact symbol.0

Cassius thought about the Rune of Wisdom on his chest. It was a palm-sized black coiled snake, which formed an "∞" shape. Its scales slightly reflected a black-purple glow, and the pattern on its body was similar to the design on the bottom of the demon box.0

This resemblance led him to recall the information about the Rune of Wisdom. It was called Ouroboros, the Chalice of Blood that brewed the Blood of Immortality, and the rune that guided the pursuit of wisdom. Ouroboros originated from the mysterious Ao Yin civilization and was said to be one of the five cornerstones that led to infinite greatness and distant horizons.0

"So, the patterns on this magic box might be related to the Ao Yin civilization's legendary five cornerstones? Or is it simply an aesthetic trend from that era?" Cassius muttered to himself. His instincts leaned toward the former explanation.0

He lifted his shirt, revealing a lean and somewhat frail body, though his skin had a jade-like quality, as if covered by a transparent shell. No one would guess that this seemingly weak body was actually a violent and savage combat machine when he released his aura.0

The Rune of Wisdom appeared faintly on his chest under the soft yellow light of the chandelier, glowing in a subtle black-purple hue.0

Cassius glanced at the upper-right corner....0