W40k: Rogue Trader
Dara N’Otmar’a was born to a rich family and raised in the wealthy part of a nondescript hive world. As a child she was once accidentally locked in a library for three days. Later as a teenager she was involved in an incident with a malfunctioning ship in warp, which traumatised her a bit. She joined the rogue trader ship because it seemed like a good idea at the time, and her (very expensive) therapist had recommended exposure to get over her irrational fear of warp travel.