Silent Desires

Naruko, to a normal eye was a cheerful, blonde, blue-eyed girl. But beneath that happy-go-lucky attitude was a strong and fierce fighter. She had a elder brother Kurama. Even though he looked outwardly cruel and uncaring, he still loved his little sister. They were all each other had after their parents death before they met the others.
Sasuke, a cold-hearted, arrogant boy. A orphan living with his elder brother, Itachi. They later in life found a group they came to value as much as family.
What happens when Naruko and Kurama along with others transfer to the school which Sasuke, Itachi and their group attends?
What are these groups? What will this meeting lead to? Will Naruko be able to hide that fighter inside her? Or would it show?
Read to find out!