umm... arent you taking this too seriously i mean its anime their hair color is never just blond and black some have pink and green. imean the manga is black and white anyway so i dont get why your complaining
@Anonymous. Random hair color...is this your first time reading manga
y u so mean ;-;
come on..it just a manga..
Um, you do realize that foreigners did mix with Japanese ethnics for centuries, right? So, having red hair is more realistic than having pink, green or blue hair, right?
Just a manga ^_^ everything can happen
Let's say the mother herself has parent or grandparent of european ancestry
E-N-D
I have relatives who are born with natural blond hair even though the parents have black hair. Look it up.
This is manga. Even more, it's fictional. It's either realistic or not.
There is no such thing as a Japanese half with red hair. You need two red hair genes in both parents and Japanese people hold none. Stupid....