Rui Kazuma

is the squad leader of team Rui from Kirigakure. Although she is the same age and rank as her good friend, Temari, Rui offered to become a sensei to a team fresh from the academy.

Background
Little info is known about Rui's past, but she often has flashbacks that reveal things about her family. Rui grew up in a discouraging, unsupportive family. Her mother insulted her dreams of becoming a kunoichi, and her father claimed that he would disown her if she tried to become one. Rui, seeing this opportunity to escape her parents, happily disobeyed and entered the ninja academy. She left her home immediately and lived with friends that didn't mind to take her in.

During one battle with Sunagakure, Rui encountered Temari, a girl of her age. The results of their battle ended with both kunoichis running out of chakra. Afterwards, they even joked how they could talk casually despite being from enemy villages.

Temari and Rui met again at the Chūnin Exams that were held in Konohagakure. Rui having her team against the Sand Siblings at some point. At the time of Orochimaru's invasion, Rui helped her team face off Suna shinobi. She eventually confronted Temari about attacking Konoha, who replied that it was a perfect opportunity to strike. The two started to battle before, but ended up with Rui winning due to her new Storm Release she'd just awakened.