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“Tales of Equinopolis” is a comic book dedicated to the main theme of RuBroniCon “Time of Heroes”, and tells the backstory of the main characters.  
Rose and Lily is the first part of the Equinopolis Tales series, in which the story begins from the very beginning.
 
Equinopolis is a large metropolis on the east coast of Equestria, with its scale and grandeur quite capable of competing with Mainkhetan. However, unlike him, the whole city was built and equipped in just a few decades - until recently, wild, impenetrable forests filled with mysterious creatures rustled in its place, which very quickly gave way to a huge city that proudly lifted the roofs of high-rise buildings to the blue skies …  
But even before large-scale events with the participation of heroes and villains began to take place in it, it all started with a little unicorn.