Datura Daydream, an herbalist trained and raised by Zecora, tracks a misfit Pegasus named Silverstreak when she gets lost in the Everfree Forest. Silverstreak feels unloved and is socially rejected (due to her cutie mark, career, and racial stigma) so she seeks help from another equine forsaken by the rest of society: Zecora. The help she then receives is not quite what she had thought it would be, it was even better somehow...
The story goes on as a Romance but then turns into a Drama, then a Tragedy, and finally: GRIMDARK.