Image imported from derpibooru 
Original Description:
 
So this is little mare here is a kind of living doll? roko wanted to have one.
 
When roko had an owner he wanted to make a living doll that looks just like her, so he did, this one here occasionally recieves memories from the real roko and started off with her personality when she was made but decided to take her own path. And yeah, a roko withoit stripes looks weird, lol. Other then that, she is still designing this character.