Like Naruto's I am sure something big happened during Sarada's birth.
If she is Sasuke and Karin's then I am sure Orochimaru attacked at that moment to try and get the child which ended up getting Karin killed maybe. I am guessing Naruto, Sasuke and Sakura all know the truth of the events and have kept it a secret this whole time for protection maybe?
If she is Sasuke and Karin's then I am sure Orochimaru attacked at that moment to try and get the child which ended up getting Karin killed maybe. I am guessing Naruto, Sasuke and Sakura all know the truth of the events and have kept it a secret this whole time for protection maybe?