An Original character created by LoneShadowStar and designed by Misokatsuhaumai. She is a fanchild of Sothe (Fire Emblem) and Astrid from Fire Emblem: Radiant Dawn.
She has long Black Hair tied into a Ponytail with a purple Hair Ribbon, Yellow Eyes, and Medium Breasts. She wears a cropped black vest, a black Belt Collar, a purple Gradient Cape, Arm Straps, brown Fingerless Gloves, White Pants with a matching belt, a pink Thigh Sheath, and Brown Boots.
According to LoneShadowStar Estelle's name is derived from "Stella", Astrid's Japanese name.