Luna has returned after 1000 years of banishment but in a foalish state. To prevent her from being ruined by the nobles and to learn about her new world, Celesitia sends her sister to Ponyville.
Bon Bon has everything she ever wanted in life, well almost everything. Her career is exactly where she wanted. She has a nice house and great friends. The only thing missing may be the one thing she can never have.