i hope Kim Young Dae and Bae Ro Na will fall in love and stay together. they look like they will be happy if they are together because they look like they know each other well in each other heart and it look like Bae Ro Na understand Kim Young Dae better than his sister and his father. so i think they should be together in future. they should be happy together. and Kim Young Dae sister need to grew up herself without having her brother next to her all the times. soon or later her brother will have to leave her and get marry.