During the Primordial Era, many powerhouses rose from the ashes, transcending the limits of mortality and becoming immortals.
They were beings of great importance to the universe.
The Oracle at the World Tree was one such important figure.
Her role was similar to that of the Weeping Sirens. Of course, they weren't known as the weeping sirens until thousands of years before the Primordial wars.
Legend has it that the Dew of Rebirth drips every 100 years, and this Oracle collects it. She is the guardian of the world tree.
The Dew gives every man desires, so it must be protected.
But when man's greed could no longer be contained, she was attacked, and just like what happened to the Weeping Sirens, she lost everything.
Thus, just like the Weeping Sirens, she also embarked on a path of vengeance that consumed her in eternal hatred, which still burns in her heart to this day.
The words Anna spoke just now were the ancient tongue the Sirens spoke during the Primordial Era.