Shikamaru has a Sister?

Yuukina is friends with all three of the Kazekage's children, and she is one of the highest ranking Jounin in the Hidden Sand Village. She despises the Leaf Village and her family, until...
Shikamaru finds out he has an older sister who lives in Sunagakure. Her name is Yuukina, and she was given to The Hidden Sand Village by the Fourth Hokage, when she had weird chakra as a child, and even Konoha's most elite medical shinobi and Lord Minato Namikaze himself could not set it right.
Yuukina is coming back to Konoha to supervise the Chuunin Exams, and Shikamaru is anxious to see his sister for the first time. During the exams, Yuukina becomes close with the Leaf ninjas, as well as her family. But the question is, when the plan for the Sand and Sound ninjas to attack Konoha is carried out, will Yuukina and her teammates choose to protect Konoha...or destroy it?

I don't own Naruto. If I did, Tobi would secretly be the ramen guy.

Naruto belongs to Masashi Kishimoto. The only characters I own are, Yuukina, Sanko, Tsuki, Nasaki, Kuno, Okada, and a couple of other ninjas.