Beholder

Addy was a man with a past. Addy was a man in the past. Addy was now no one and nothing.

So, why would you need a man who doesn’t exist?

Any number of reasons really. Take your pick.

First Arc: Macy’s revenge
Macy had no one. Isabelle was everything to her. And when Isabelle disappeared, Macy would stop at nothing before finding out what happened. And nothing could come in the way of her revenge.
She just needed a little help.