C979 Summoned a Great Devil King

The twelve archangels formed a circle. They cut their palms and pressed the wound to the ground.

As they chanted some kind of unknown hymn, blood flowed out from their palms, as if pulled by some kind of invisible force. It gathered on the ground to form a perfect circle, and then the blood started to intertwine and fuse together, turning into strange Western runes.

In just a few minutes