This was a person who had taken in part of the UEG. She had used something the UEG had created to create her own followers in this world. Once her mind had been broken, the Sages who ruled this world had made use of her. Pieces of her body were scattered across the floating islands. It seemed she was being used as an energy source for this false continent.

“I cannot fathom their purpose...but I cannot forgive them for using my followers as a tool like this. Once this academy has been laid low, I will put an end to these Sages.” The UEG touched the Seyla, absorbing it into herself. Even if only connected to her in a minor way, it was unpleasant to see the Seyla used like this. As something born from the UEG, absorbing it back into herself was easy.

-Volume 11 pages 161 and 162