[King of Nets] If, If, Maybe

If tragedies happened at the same time in different time and space, would I replace you, or would you choose me? If I were not your sister, then maybe I wouldn't have to bear the sorrow for so many years Or maybe, if I didn't see you, then we wouldn't be entangled like threads on a concentric knot and can't be separated. In her previous life, the girl had a happy family and was an outstanding individual, but in this life she has a broken family and is frail and sick. Can she forget the past, eliminate her grudges, and make her own way in this time and space with her beloved?