บท 522: 289 Ranked Fifth Dark Ultimate Form (4000)_1

The lamp glowed with a yellow brightness, and the patterns on the magic box in his hand gradually became clear, as if they were symbols cobbled together from the ripples on the water surface.

Casio thought of the Wisdom Rune on his chest, a black Ouroboros about the size of a palm, shaped like an "∞". With scales that lightly reflected a dark purple glow.

The patterns on it were similar to those on the bottom of the magic box.

He couldn't help but recall the information of the Wisdom Rune.

It was called Ouroboros, the Cup of Blood that brewed the Blood of Eternal Life, and also the Wisdom Rune that guided forward climbing.

Ouroboros comes from the mysterious Oyon Civilization, rumored to be one of the Infinite, Greatness, and Distant Five Keystones.

"So, the patterns on the Magic Box might be related to the Five Keystones in the legends of the Oyon Civilization? Or, it simply a product of that era, possessing a unified aesthetic pattern?"