Been lurking for years and signed up to make this comment.
I have a theory as to why Karin's DNA matched with Sarada's, assuming she is still Sakura's daughter.
I wonder if Sakura bit Karin while she was held by Konoha, be it to heal her or for research reasons. Shot in the dark here, but...
Hey everyone!
Been lurking for years here just reading the manga so figured this is as good a time as any to sign up and make myself known. Looking forward to making conversation and friends.