This story is a sequel to My Little Sister is a Dragon - Nightmare Moon Arc
Nightwatch and Buttercream come across a lost little dragon named Lily who claims to be from the land of Ester Dracos, where the serpentine Eastern Drakes live. They embark on an adventure to return Lily to her homeland and end up coming face to face with the powerful Emperor Antirrhinum, who may have knowledge about Buttercream's species. While Nightwatch does some research, Buttercream ends up in a huge predicament that could endanger Ester Dracos and all the new friends she's made!
This arc takes place not long after Nightmare Moon's return and the rest of the story runs alongside the events of the official show. It will eventually cross over with the plot of Flurry Heart's Story. Click here to start reading Flurry Heart's Story: https://www.fimfiction.net/story/465425/flurry-hearts-story-elements-assemble