Why did Karin keep the umbilical cord, if she's not Sarada's mother? I'm just very confused about this situation.Why did Karin keep the umbilical cord, if she's not Sarada's mother?Anyone explain it.
A hypothesis is for this question is that sasuke took in too much of Karin's chakra when healing himself. You can obviously hear her say on the episode of capturing the eight-tails"He took in too much chakra". We know that chakra may influence living beings, so it is possible that Karin's chakra may affect Sasuke's child. Or because Karin helped deliver Sakura and Sasuke's baby, so she might've just kept it. (We know how obsessed Karin can be with something.)