Fluttershy's younger brother, Zephyr Breeze is a free-spirited hipster, but he had a problem with not finishing what he'd started. He kept changing career paths and quitting when things got tough, out of fear of failure. Sick of letting him freeload off their parents, Fluttershy convinced them to kick him out, and he ended up mooching off of her instead. She tried to help him get different jobs all over Ponyville, but he kept quitting. Finally, Fluttershy kicked him out of her cottage, and he tried to go live in the woods. Fluttershy and Rainbow Dash went to talk to him, and Fluttershy told him that sometimes you have to do things even though you might fail. The two pegasi helped Zephyr Breeze gain the confidence to complete mane therapy school. He graduated, and is now ready to begin his life.
He also seems to have a crush on Rainbow Dash, and keeps teasing her that she likes him, but she doesn't.