Eva is a boss who can be recruited as a companion. She is automatically recruited after defeating her during the Justice Kaiser's Side Quest.
"My job range is pretty awesome. Since I've been exiled for so long, I've tried my hand at a lot of different ones. ...That's not to say I half-assed any of them!"
- She's the only companion whose Unique Ability takes the form of an equip-able ability that can be turned on or off.