The story of Serranae Sarutobi is about a young girl who parents are killed by a certain someone (you will find out in book 2). She barely knows anything about her clan but when the Hokage from the Hidden Leaf was on his travels to the Hidden Mist he met her and found his grand-daughter which is her. Her mother Mianae is his second child. The Hokage brought her back to Kohona and gave her a place to live and entered her to the academy. He help her train and to become an excellent student in the academy. While attending the academy she eventually met Naruto who was alone on the playground. From there on out they became best friends. Lord Third insisted them to move together when she made 12 since he didn't have any one her age staying with him & it would be good for Naruto to have someone to come home to like family... then eventually she slowly was falling for Naruto but who knows Sasuke might steal her from him.....
( I DO NOT OWN ANY OF THE NARUTO CHARACTERS THEY BELONG TO Masashi Kishimoto )