There are really many things like this. Basically, they can’t be found back. It just depends on your sister’s luck. If you are lucky enough to meet a good man, your family will not be so angry after a while. They will come back together to ask for forgiveness. The family will happily hold weddings and live happily together for the rest of their lives. If you meet a scumbag, your life will be ruined. They are out having fun and don't want your sister. There are many things to do. She will only go home if your sister suffers, but she is afraid that she will be embarrassed to respond. Her family said she never returned. Then she will suffer a lot in her life. In short, it depends on whether your sister is smart or not, and whether she can figure it out. Otherwise, she will run away if you get her back.