ATTN AGENT SWEETIE DROPS: BRILLIG BLACK EVENT CONFIRMED. FOUNDATION CONTINUITY SCENARIO OMEGA-OMEGA-OMEGA. FINAL DIRECTIVE: ENSURE LONG-TERM SURVIVAL OF HUMANITY BY ANY MEANS NECESSARY.
An alternate world where the roles are swapped by a time-altering magic, so Sunset Siren and a human Adagio. Adagio is a hard working girl with good feelings while Sunset was waiting for her moment to attack Equestria but; something inside her change
The secret to surviving the end of the world? An enormous 'economy size' jelly jar, big enough for a pony to hide inside. And don't forget to poke some air holes in the lid!
It may have started as a simply infatuation, but Sunset wasn't content to let it rest, even she had to bend what reality truly was to be with that Skeleton that struck her so...