Re: How are Karin and Kushina related?
Threads like this always come up.
It's because usually the artist would draw the character almost the exact same way, thus people who read these mangas start to speculate is character A. is related to character B. by hairstyle and facial features.
People think Obito is Tobi.
People used to think Pain was Minato.
Even people on here thought Karin = Kushina for some weird reason.
Until Manga confirms Kushina and Karin related. Then yeah. But as of now. No. Just because they both got red hair doesn't mean they're related. It's just the way Kishi drew them.
Same with Naruto, Yahiko, Tsuande's brother and Kankuro
Izuna and Sasuke
Kushina and Sakura <-- I hope this right here doesn't lead to bullshit theories.
But once again. Kushina and Karin are not related, until manga proves otherwise.