Not enough backstory on Linda. *mild spoilers*

I didn't really like how they provided so little backstory on Linda.

OK, so she was abused by both her parents. But what else? How was she paying for everything? What was her real name?
What made her suddenly decide to make her literal life goal to pick off innocent men?


"I'd say this cloud is Cumulo Nimbus."
"Didn't he discover America?"
"Penfold, shush."