In most of the countries is relationship between cousins accaptable. It's wierd as fuck, 'couse in my country as well, but ... If it's in manga I don't mind.
Btw, if the families are marying between themselfes, they are probably more than cousins..? :l
Wow..in my tribe, you can't even marry or get in a relationship with someone who is even remotely related to you,like from the same clan as you even if you have different surname, not even if you are related through your great great great ancestors..feel me? (Nigeria has lots of tribes with their own cultures and traditions)
my uncles are married and they're cousins.. hmm its kinda awkward but is just something that happened... like we all know that they like each another lol It depends on the family I guess!
even for me, but I grow with them so you just accept it! ╮(￣▽￣)╭
actually, it gets even weirder because they're most probably all products of incest...
so um...they're cousins? sweet home alabama i guess