After saving her friends from the evil Metarex, a Seedrian named Cosmo has been sent to Equestria instead of the death she was expecting. When she arrives, she is found and brought in by Princess Twilight Sparkle, who was preparing to take the throne and rule Equestria alongside her friends. While trying to find a way to make it back home and to Tails and her friends, Cosmo settles in to her new home in Equestria and makes new friends and memories with the new world's many inhabitants.

This is a story set during the ninth season of My Little Pony: Friendship is Magic, and after the events of the third season of Sonic X. All characters belong to Hasbro and SEGA, respectively.

This is also my own contribution to the #SaveCosmo campaign, and is a separate entity compared to my previous entries. If you're a fan of Sonic X's Cosmo the Seedrian and would like to support the cause, you can check out the campaign by clicking this link.