Adopted via auction, Purple was a chance encounter that could've ended up with anybody.
Regardless, she seems to be happy that out of all places, she ended up here.
It's undoubted fact that she's the powerhouse of the group, of which Kazoomi is quite envious, though this Newth is modest about it.

Back when she was Pink, her name was ironic, but she doesn't mind being her namesake either.