A look of reverence flashed across his face as he walked towards the sacrificial array.
A purple light suddenly surged from the formation and formed a barrier, enveloping the entire formation and defending it.
Mr. Yu paused, then became excited and mumbled to himself,"The heaven crystal essence barrier Kasaya is actually the legendary heaven crystal essence barrier. Which of our clan's Almighty experts laid down this formation, and what is his intention?"
He bit his finger and used his blood to draw runes on the purple barrier. Soon, his body began to glow with purple light and he finally integrated into the formation.
The entire formation was less than a hundred meters in radius. Four majestic pillars stood at the four corners, and on them were carved all kinds of rare and exotic beasts, as well as strange-faced demon race people.
Mr. Yu walked to one of the pillars and observed it carefully. There were a few demon characters on it, which he could recognize.