Oceans rise. Cities fall. Hope survives.

Wow.

Years in the future, but not many, Sunset Shimmer, now a grown adult, reflects on her life - primarily, her decision to stay in the human world - now known as Thanvion. Connections between Equestria and Thanvion have been widespread, with both cultures working and growing together, and many individuals crossing between the two as a sort of vacation.

But all is not well.

After a cataclysmic event and the defeat of the real Grogar, who aimed to destroy both Equestria and Thanvion, Sunset made the decision to stay in Thanvion. Now nearing what she thought to be the downwards slope of her life, she contemplates whether or not it was all worth it. However, a visitor from Equestria spurs on what may be Sunset's most important journey yet.

This story is told in an anachronistic fashion, in a prologue, fifteen chapters, an epilogue, and a postscript.