The demons were beautiful but dangerous creatures who had the power to charm others with their powers. But to maintain this power, they had to feed on the negativity and distrust of others. The more of this negative energy they consumed, the stronger their powers became, and the farther they could spread their dark magic.
If the demons had their way, they would have divided and conquered all of Paradox Space. But a certain Calliope wasn't having it. Rumor has it she found a way to banish them to another world – one where she believed their magic power would be lost.