i was wondering but not worried as the MC in serenity has the ability to creat copies evident in him writing his mother to the story when he thought he would loose her. plus there are 2 morgans. morgana from the human world and morgan written into the story by his mother. and creating copies of women from his visual novels. so i never thought you would ever remove rin from iether world because 1 of them could be a copy of the original.