Human Timelord

Erica Scotts is in her final year of schooling. Yet whilst her classmates struggle through the workloads given to them, she is breezing through her exams and assessments. At only fifteen years old she has more knowledge than her teachers and parents and has skipped three years of school.
But when the teachers start getting smarter and outwitting her, she senses something wrong. Something, alien...

So in walks Captain Jack Harkness and recruits her into Torchwood. Of course, Torchwood gets shifted along her priorities list as she finally meets the legend. The one, the only (of course we all know who it is).

Doctor.