He was evil, and it was east to see.
She was too, but there was more goodness to see.
He never saw the light in anything.
She saw light in many things.
They hated each other.
For reasons that seemed childish.
He was the one that wanted a new world, to change everything that was ever known.
She liked the way that things were, and if something happened it happened.
To who knew him, he was hated.
To who knew her, she was loved.
The most hated man in the world had a secret that didn't like being a secret, and made sure she that she didn't. The Evil Zeref had a sister that very few knew about, and soon enough, many more people would know about her.