An Tachibana

Tachibana Ann is the 13 year old sister of Tachibanna Kipei, who also is a student at Fudomine Middle School and a regular member of their girls tennis club ( second year).
Her more distinguishing physical traits are her pink barrettes (green when she's in sport clothes), and despite her boyishness, she's unafraid of using miniskirts, cute clothes or dresses, to pull off more feminine looks.
An cares very much for her brother and her friends from both the Seigaku and Fudomine teams, and tries to help them as much as she can.
But she has a rather explosive and even downright vicious temper that leads her to either get in trouble for the sake of others (as proved by Sakuno and Atobe) or become physically violent (as proved by Kirihara).

Other information:
Momoshiro, also called Momo-chan by her, is one of her close friends.
Her known family members are her Great-grandmother, grandmother, mother, father, older brother Kippei, and her Boston terrier Gokutora
Height: 155 cm
Weight: 57 kg