Darkerin Sound, or Dark, is a former DJ from Canterlot who now lives in Ponyville as a fitness instructor.
Dark's Family
Dark's Father, Omega Sound
Dark comes from a family of six and she is the only earth pony, the youngest, and only female. Her father, Omega, raised her and her five brothers on his own. In Canterlot, he works as with the taxi service there.
Wincer and Caki
Dark's oldest brother, Wincer
The tailless wonder, Wincer's wife Caki.
Wincer, Dark's oldest brother, bares a great resemblance to her in color. He is the largest in the family and the fastest flier. He tends to refer to Dark as "Squirt" and ruffles her mane when doing so. When he moved out, he moved to Cloudsdale where he worked as a school teacher. This is where he met Caki, who was also a teacher at the same school. They knew they had a spark when their eyes met. The two got married a year later. At the wedding, there was an accident with a candle and Caki's tail was burned off. After the wedding, the two set off around Equestria as traveling teachers.