Jayne Austin is a freelance agent.
The year is unknown but is quite a way into the future, likely several hundred years. Humanity is spread out over a good deal of the galaxy and enormous space stations floating in space provide an alternative to living on solid land. Many of these planets and stations are part of a huge union governed by what seems to be a republic. Certainly the trouble for Austin which changes her life trajectory was tangentially connected to a well-heeled Senator.
That trouble comes about while Austin is nearing the end of her very impressive and extensive training at a spy academy. She is doing extremely well and is likely to graduate at the top of her class. This is very good for her. It is not so good for the fellow certain to come in second in the rankings, a chap whose father is the Senator. Said Senator would prefer his son end on the highest note which means Austin cannot.
Since Austin is unwilling to step aside and she is known for speaking her mind whenever she feels like venting and she is not above going a bit rogue-ish which includes letting her knuckles get acquainted with other people's noses - you get the picture.
Suddenly kicked out and needing employment, Austin hits upon a plan to make use of all that good training she has thus far been given plus her natural inclination towards and aptitude with that line of work. She decides to go freelance.
It is not going to be easy, of course. She is a beginner in the business. No one knows who she is and she has no real idea how to land a client. And she has virtually money to help get her career started. But she is resourceful and intrepid and determined to succeed.
More importantly, she has a 'Plan'.