Serenity is well known for the work she does with her cliental so when a new guy comes in to see about hiring her to do a job for him, it wasn’t anything she’s not heard of.  Serenity takes on this Job and arrives to the scene to scope out her clients wish and finds that the man who hired her was setting her up for trouble.  Serenity takes this bit of information and runs with it because she’ll send his master a huge message, don’t mess with Serenity because she’ll come after you next with her throws of fear and lethal legs as weapons.