That 's what I can remember of the plot
Two girls were switched at born. One is poor, smart, mean and live with her mother. The other one is rich, not good in her studies, kind, have an older brother and liver with her parents. One day, the rich girl has an accident where her parents learn that she is not their biological daughter. Both mothers love their daughters even if they are not there biological one. The accident changed the life of the girls. Each one was returned to her biological family and the rich family moved to another city. After years, they met again. The fake siblings were in love since childhood.