While still waiting for Elena's transformation to be over, Yu Chirou suddenly made an astonished face. Fortunately as everyone around her were busy looking at Elena, no one noticed it.
The reason for her astonishment was Zeta. Even though she was very impressed by her and was even quite fond of her, she had not expected this girl to suddenly become an anomaly Chaosborn.
Anomaly Chaosborns were considered to be very special beings. It was debatable if they were good enough to match a True Chaos in status and strength or not but they were definitely stronger than most other Chaosborns and Chaos Celestials.
There were only a few Chaosborns who were considered to be an anomaly and all of them had some kind of broken ability. The same was the case for Zeta.
Her Void Existence unique skill was definitely a very strong ability but that was not what made her an anomaly. And even her new nameless race alone was also not the reason.
