so the only solid idea is that she's the daughter of grace's estranged father's brother or sister. grace's dad left the family when she was just over a year old and moved back to south korea. she visited him with her older siblings during the summer and is really close to her aunts and uncles on that side; she just doesn't have a solid relationship with him. you could say she is from korea or you could also say that her parents came to america.