Yes, she is. Towards the end of season two in the anime, it's revealed that Yuuki is a pureblood and Kaname's 'sister'.
because he wants the blood of yuuki the adored daughter of haruka and juuri..because juuri's blood taste like the blood of yuuki...
Matsuri Hino (creator of Vampire Knight) stated that Yuuki is "probably age 16".
Vampire Knight Guilty (Season 2) Episode 7
Voiced by: Yui Horie
They are from the Vampire Knight anime.
Yuki is kanames sister and her vampire powers have been locked inside her so Yuuki is a pure blood vampire so kaname bites her and feeds her his blood
Yes Kaname turns her into a vampire and Zero is mad.
Kaname-sama and Yuuki...since they are pure-blood vampires That's why everyone calls Yuuki the Princess.
zero kissed yuuki at the end of the manga but they don't in the anime
If this about Yuuki and Kaname leaving Cross Academy I believe that is in Volume 10 of Vampire Knight.
Yuuki's stepfather found Zero in the snow at night, and he brought Zero back. Yuuki gave him a bath and saw blood, so she washed it off. Zero is the best.
Kaname -- if you're talking about Vampire Knight.