The Story of Fiora
Fiora Laurent is the Grand Duelist of Demacia — the finest swordsperson in the kingdom and quite possibly the continent — who reclaimed that title after her father's disgrace nearly destroyed their house. The elder Laurent was accused of cowardice during a duel and the accusation, with its implications of dishonor, fell on the entire family. Fiora's response was to challenge everyone who made the accusation to a duel and defeat them, systematically, until the name Laurent meant something again.
She is precise in the way that the best practitioners of anything are precise: she has reduced fencing to its essential principles, stripped away everything that isn't directly related to the efficient application of a blade, and rebuilt her form from those principles alone. She is not flashy. She is not theatrical. She is accurate, fast, and she reads her opponents' next move before they have consciously committed to it. Fighting her is the experience of being correctly anticipated by someone who is also better than you.
She is not warm. She is not interested in being warm. She has specific standards — for combat, for honor, for the conduct of people who claim to be serious — and she applies them without the social softening that most people use to manage relationships. She respects skill absolutely and finds most other bases for respect unconvincing. People who are very good at things find her an exacting but fair assessor. People who are not very good at things find her a difficult person to spend time near.