grant said:
QFT. Nasty side effects would be something of a paradise compared to her youth there. However I imagine that Zouken simply never cared*, he didn't even intend for her to survive being a Holy Grail, and everyone else probably assumed it was a normal dye. It isn't like anyone would be able to find out, until she started staying around Shirou I don't think Sakura had any friends.
*Reading this reminds me of how irritating his end was. The freakish worm-man should have been skewered on a stick and burned over a fire for fifty years. Then turned over to Ilya for the real torture.
Actually, until the Grail War came around, Sakura was never actually meant to
become a Holy Grail. He thought that the war wouldn't happen for another fifty years, so she was only an experiment, so that he could learn the
procedure, and work out how best to 'train' her heir in order to maximise his control and the heir's power. But, when the Grail War came around, she was just too perfect for him
not to use her.
But, nevertheless, he wasn't particularly bothered about how long she lived and, indeed, he
expected his treatment of her to shorten her lifespan. As long as she survived long enough for him to get a child out of her to 'train', he couldn't care less how much she suffered or how badly it damaged her body.
As for the hair colour, there's no
fundamental reason why people can't have purple or blue hair. It's just that, in the real world, we never evolved genes that would allow us to grow such hair. In the Nasuverse (and, in fact, in general anime/VN universes), they presumably
did. I would assume that everyone but Rin believes that Sakura's hair is
naturally purple, especially since Shinji's is
blue. As for Rin, I have no idea what
she thinks about it....
And, yeah, Zouken's death was
far too painless. But, what is even
worse is that he's a Karma Houdini outside of HF. He never gets his commuppance, Sakura stays under his control and he's free to plot to gain immortality, torture Sakura and to eat innocent people whenever he needs them to remain alive. Yeah, he should have suffered a lot more, but at least he's
dead....
I never thought I could hate a fictional character as much as I hated him after reading HF, until I read Fate/Zero, and realised that he's even
worse. I mean, in HF, he's mostly 'just' an immoral bastard who uses Sakura to gain himself immortality, but in Fate/Zero, not only is it more explicit what he does, but he also
enjoys it
far too much,
even reviving Kariya by using the worm that ate Sakura's virginity, and then
gloating about it to Kariya (who, remember, is fighting
for him, in order to save Sakura), solely for the lulz.