As the Protagonist finds himself in a world of ponies, he has to makes friends with the Elements of Harmony, but at the same time come to terms with new powers, but as time goes he'll be asking himself one thing, can he really belong in a world of talking ponies and love one.
This is a Persona 4 and MLP FIM crossover, and seeing how both of these things make good use of Friendship, I thought it would make a very good story to do.