Why? I always thought Yuki and Kaname could be siblings because of how their hair and face resembled each other... (I know, I pay far too much attention to hair. But that's one of the reasons I love her art style) But then, I go "nah, it's impossible because Kaname's a pureblood. .."

What it like the other pure-blood vampires, Kaname's actual body is somewhere else and he's been control Yuki's real brother's body all this time? Maybe the "real Kaname" is quite old.

"I would have been happier...if I had been born her real older brother

I think that maybe Yuuki is the "older" sibling. The exchanges that she had with her family seem that of a girl of older than six years. This is especially evident when compared to the scenes from when Kaname "found" her in the snow. At that time she acted as a child who played hide and seek and spoke in simple sentences. With her family she seemed very aware of what was going on around her and why. If Kaname were truly her "older" sibling Rido would be of no threat to him as far as who has the right to power. Rido never says that Kaname is "not" a Kuran just that Kaname doesn't have the "right" to succeed the position of head the Kuran family that his father held.

Kaname's actions seem directed toward making sure that Rido does not come to power. Maybe in the vampire world Yuuki being female negates her first born right to the "throne" and so the next in line male would be her father's brother Rido. As head of the family Rido would dictate who becomes Yuuki's mate and, being the power hungry beast that he is, it is not a big leap to guess that that mate would be himself. This type of inbreeding was hinted at during the Shizuka arc. Rido having children with Yuuki would push Kaname further from power. Now it seems as if Kaname killed Shizuka not only to protect Yuuki from the fate that awaited Sara but also to keep Rido from having access to a powerful pureblood bride/mate.

It looks like Kaname has been using the time that Rido was "away" to gather a following among the young vampires and humans to try to upend the old guard and their old ways (like killing first born females). I noticed in the earlier chapters that Kaname was reading a lot of old books and he mentioned that Yuuki would need them too. He was also trying to learn how to use and control his new found powers and it looks like Head Master Cross is helping him with this task as are the vampire hunters. If Kaname can't convince the vampire world to follow his lead he, along with Yuuki, will have to resort to doing to Rido what Rido did to their parents. Rido seems ancient and he won't be easy to get rid of on a permanent basis.

I think Yuuki apologizes to Zero because she feels that by pushing so hard to uncover her past she has put him and Kaname is great danger. With her identity exposed Rido will come to power, Kaname will get into who knows what type of trouble for hiding her and Zero will be killed for Shizuka's murder.

alright well, when Yuki first said "this man is my brother" I was like wtf, hmm ok.......that whole flashback already gave me a feeling that she wasn't related to the Kuran's. Then when Kaname said "I would have been happier if i was born her real older brother" I was felt happy yet depressed at the same time. Cause yah I guess they're not blood-realted, but does that comment mean he doesnt really think of her too romantically?

Also I don't really think when Yuki first said that Kaname was her brother was a mistranslation at all. When she was little she would always refer to Kaname as "onii-sama" cause she really thought him as her brother. So remebering all her past she referred to him now what she would in the past.

One more thing, I'm a huge KanamexYuki fan so this chap was nice, but I've always thought since the 1st chap "oh this chick is going to end up with Zero" I think is chap was kinda leaning in that she's not goign to end with Kaname. My prediction now is that she'll either end up with Zero or nobody. But I hope there is still room for some more KanamexYuki fanservice. ^_^

Expected the vampire part since I heard Yuki had sweet blood, however the siblings part is different from what I imagined. At least she got her memory back.

I really think Yuki is the one adopted in the Kuran family not Kaname. Just because of something Rido said in the chap. "I see you couldn't use my blood could you?" "Well that's ok..which ever way it happens, that girl will have Kuran's blood in her, which is ok" Now if Kaname was adopted in the family, he wouldn't have Kuran blood. But I do agree with maybe Rido wanted Yuki as wife because her blood and herself is special in some way, and that Yuki is sorry for putting Zero into all of this cause she deeply cares for him( maybe love, i think she's still confused to really tell)