The other 5 ponies are dead. Twilight grieves, she can't help but remember everything and cry. Celestia tells her a story about her life with her friends. Their relationship as student and teacher connect.
Twilight Sparkle's friends have lived long and happy lives. Now their time is coming to an end, but Rainbow Dash, at least, will not go gently. Twilight has the power to save her friend's life. Is it worth violating the natural order?
It has been almost a century since Twilight and her friends had discovered their destiny, and Celestia has been wracked with constant regret over the fate she has condemned her friends to. Luna looks to those very ponies to help Celestia smile again.
Twilight Sparkle is embarking on a new path in her life, and Luna is there to guide her to the right one. At long last, it is time for the Stars to come home.