Sona Sitri

Sona Sitri is a supporting protagonist in the light novel and anime series High School DxD. She is the president of the Student Council at Kuoh Academy and a childhood friend and rival of Rias Gremory. Like Rias, she is secretly a devil, and the younger sister of a Satan, in her case Serafall Leviathan. Her peerage includes her Queen, Tsubaki Shinra and her Pawn, Genshiro Saji.

She is voiced by Natsumi Takamori in the Japanese version of the anime and Marie Charleson in the English version.

Appearance
Sona is a young bespectacled woman with a slim figure, black hair styled in a short bob cut and violet eyes. Her body measurements are [B77-W57-H83 cm] [B30-W22-H33 in], her height is 166 cm (5 feet 5 inches) and her body weight is 51 kg. She is mostly dressed in her Kuoh Academy girls' school uniform.

Personality
Sona is shown to be a very strict and intelligent person. Whether it is a matter of the Student Council or the Sitri Clan, she does not take anything lightly. She is also rather competitive, having a long time rivalry with Rias.

Sona is very dedicated to her dream of opening a Rating Game School that is open to all regardless of their status, even going to a human school to learn of their system.

Sona also is very protective of her big sister, Serafall, though she also tends to be rather uncomfortable around her. In fact, Rias claims that during their early trips to a bathhouse, Sona would complain nonstop about her sister.