Universe: "Rangers Apprentice" by John Flanagan

Female, young adult, member of the Ranger Corps

Best skill: knives

Likes: dark creepy forests, silence

Dislikes: crowds

Short story: Calla's father was a ranger. She knew how does it work and wanted to join them when she grows up. It wasn't easy, nobody thought Calla would be good enough. At the age of 15 she actually got accepted and did really well. When her father retired she took his workplace.
(yeah I'm not good at writing)