Spoilers for Season 6.
You are a sellhoof, a mercenary hired to go preform various tasks. Most of them violent. One day, you were hired out by Princess Flurry Heart to take care of a dragon that had frozen all of the Crystal Empire. As with most jobs you went on, it wasn't the journey so much as the destination that changed you.
Second person x reader fanfic that deals with a teenage/young adult aged Flurry Heart. This idea literally sprang up because of the idea of Flurry Heart's wings growing to massive sizes and the idea of using them as blankets.
Art by Zombie.