Boni suffers from Retrograde Amnesia and cannot remember anything dating back from before the day she woke up. Her original name was Bettie and she worked for a high-end Secret Agency, however now she works for a Rescue Team and later rejoins the Secret Agency as well.
I have so much more info but it's not available to me at this current moment X'D
Link
Foxtail11
This picture is one of my favorites. :3