Black Alice/Goddess of Chaos

The Black Alice of the original world and the Goddess of Chaos. Though she was killed at the end of first Monster Girl Quest trilogy, she was instead accidentally resurrected back into the Remina of the original world in an experiment that was intended to resurrect Heinrich. As a result, she was given an opportunity to attain the power of chaos, that which existed before light and darkness, and from which light and darkness (and therefore Ilias and Alice I) originated. Because of this, Black Alice was able to become the third goddess, possessing powers that surpass the former two goddesses. She caused the Great Disaster which in turn created the chaos that is devouring all of the parallel worlds, and is thus the main driver behind the conflict of Monster Girl Quest: Paradox.

Trivia
She only appeared at a flashback at the end of Part 2.