Revenge of Erinyes

She had never knew what it meant by suffering, because that was all she had ever known of. The only reason she even questioned her situation was because the people around her kept pitying her, and saying,
'You poor soul, how unfortunate of you to be alive.'

But contrary to their words that resembled more of a prayer, she did experience happiness. And that happiness was also what made the despair that she experienced afterwards destroyed her.

Somehow she was offered a second chance at life, a deal from the Devil itself, since she had grown out of her delusion that the mighty and benevolent God exist.

Trading off her everything, she promised to destroy her own misfortune and live her life in opposition to every rule set by the Angels and God, as she accepted the hand the Devil had offered her with a smile.

Even if it means being the Devil's very spawn, puppet, or anything it deemed her worthy.