Sona Sitri

Sona Sitri (also known by her alias Souna Shitori at school) is a key character in High School DxD.

She is a pure-blooded high-class Devil, the younger sister of Serafall Leviathan (one of the Four Great Satans), and the heiress (later head) of the Sitri Clan. She serves as the former Student Council President at Kuoh Academy, where she maintains a strict, disciplined approach to her responsibilities.

Sona is a childhood friend and longtime rival of Rias Gremory. She is calm, highly intelligent, serious, and strategic—often relying on technique and planning rather than raw power. Her abilities include strong water-based magic, allowing her to manipulate liquids and create water constructs.

In appearance, she is described as a slim, bespectacled young woman with short black bob-cut hair and violet eyes, typically seen in the Kuoh Academy uniform. She ranks as one of the most popular girls at school (third after Rias and Akeno).

She's portrayed as responsible, competitive, and dedicated to her goals, including her dream of creating an inclusive Rating Game school.