With characters from one of my other stories, 'Sunny Knight: a pony's tale', Her first apprentice takes place in the mane story arch of 'My Little Pony: Friendship is magic', many years down the road when the newest princess comes of age and is ready to take an apprentice under her wing. Meanwhile, elsewhere in the Crystal Empire, a small yellow foal, named Sunny, looks to be adopted and taken away from a less then enjoyable life at an orphanage where he feels absolutely alone. Both of their dreams are about to come true, in ways they both couldn't possibly imagine.

Single shot fic, not going to elaborate further.