Why did Yashida "adopt" Yukio?
In The Wolverine we learn that Yukio is neither a real member of the Yashida family nor a mere employee, but she was an orphan found by Yashida when she was a child. When asked by Logan for the reasons she says that Mariko always had problems making friends. So it seems she was taken with them because she made friends with Mariko, which Shingen puts a bit more cold-hearted when he says something along the lines of (forgive me for not being word accurate):
You are a toy doll, a companion for a child who has outgrown you.
Which sounds a bit cold (and seems to be what Yukio thinks secretly, too), but sounds reasonable given that Yashida seems like a man that takes and gets whatever he wants.
But likewise Yashida is depicted right from the beginning as a man that fears his own death above all other things (even if this is emphasized more heavily towards the end). And from a story viewpoint Yukio's mutant power to predict other peoples' deaths doesn't serve much more than to classify her even more as an outcast (and maybe to raise the tension by falsely predicting Logan's death).
So are there any hints that she wasn't "adopted" just to provide a friend to Mariko, but for Yashida to constantly have someone around him who could warn him of his death? And was this an additional device to emphasize his constant fear of death and thus another hint to his actual plans? Or am I just over-interpreting things here?
(While it may be that this was intentionally left open for interpretation, there could also be additional hints suggesting the one over the other).
Best Answer
Firstly, Yashida was a nice guy until he was on his deathbed. Logan himself rescued him in Nagasaki due to the kindness shown by the Japanese to both himself and the other prisoners of war. So it's understandable that he would have been inclined to rescue an orphan girl looking through the garbage for food and set her up as a playmate for his granddaughter.
While one of Yukio's roles is as a device to predict Wolverine's death, she is also used in a bit of foreshadowing earlier when she declares that she did not foresee Yashida's death. (The fact that she later tells Logan that she is never wrong is a bit of a hole.)
Shingen's disdain for Yukio is also understandable considering that she's an outsider foisted upon his daughter by his father. His dislike for all three elements is remarked upon throughout the film. The fact that Yukio considers herself better at the katana than him probably didn't help matters either.
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Why did Yashida betray Wolverine?
I think Yashida "faked" his own death because he could not stay a public figure (head of a big company) while still becoming the Silver Samurai. Since Logan had refused to provide his healing abilities, Yashida might have decided to force it from Logan in the guise of Silver Samurai.What is Yukio power in Wolverine?
Yukio is a Japanese ninja and mutant, with powers that differ in both the original and revised Timelines. In the original timeline she has the ability to see the death of living creatures, while in the revised timeline, she is a teenager and has the ability to control and manipulate electricity.What happens to Yukio after Wolverine?
Yukio is no longer travelling with Wolverine. His claws, after being cut off by Yashida's giant samurai robot-suit, have regrown as bone. At the end of that sequence, he's recruited by Professor X and Magneto, and when he turns up in Days Of Future Past some years later, he's got metal claws again.What did Yashida do to Logan?
Yashida wanted Wolverine's healing factor to stop himself from dying. As they fight, Yashida in the guise of the Silver Samurai cuts off Logan's claws, and begins stealing his healing factor.Let's Color Ai Yoshida ⋆ Full Body ⋆ Naruto RPC
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Answer 2
While it is highly doubtful that a kid Yukio could have developed mutant powers, once Yashida came to know about them, he must have kept her closer. Earlier on, as explained, she was adopted simply because she could be friends with Mariko. Whatever happened, Mariko was the only heir to the family. Also, Yukio would always be adopted, an outsider. Such is traditional Japanese family policies.
So while Yukio was adopted to be Mariko's playmate, once Yashida was aware of her powers, he would not have failed to utilize them.
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