Sona Sitri

Sona Sitri was the heiress of the Sitri Clan, taking the position since her older sister, Serafall Leviathan, who became one of the Four Great Satans. As such, she is the youngest daughter of Lord Sitri and Lady Sitri. She is a first-year college student at Kuoh Academy, the former President of Kuoh Academy's Student Council, and a childhood friend and rival of Rias Gremory. Her alias at Kuoh Academy is Souna Shitori, and she is the third most popular girl at the Academy, behind Rias and Akeno Himejima.

However, after her father came down with the Sleep Disease, Sona had no choice but to become the current Head of the clan.

Appearance: Sona is a bespectacled young 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 usually seen dressed in the Kuoh Academy girls' school uniform. Kuoh Academy girls' uniform consists of a white long-sleeved, button-down shirt with vertical linings, a black ribbon on the collar, a black shoulder cape and matching button-down corset, and a magenta skirt with a white underskirt beneath it.

Personality: Sona is shown to be a highly strict and serious person and is noted by Saji to be unforgiving even towards her own servants for getting into trouble as demonstrated when she ruthlessly spanked Saji for acting without permission. Whether it is a matter of the Student Council or the Sitri Clan, she does not take anything lightly. Sona seems to be extremely dedicated to her dream of opening a Rating Game School that is open to all Devils regardless of their status, even going as far as going to a human school to learn about their education system and stating that she would destroy Rias' ranking and pride for it's sake, inspiring fervor in her Peerage to burn away their own life span for their King's dream, but she also displayed a shockingly short-sighted and weak-willed side to herself, having not considered the objection's of the Great King faction even after they openly mocked it, namely that they would use it politically against her sister, and even with Serafall clearly offering her support, these protests nearly had Sona abandon her dream rather then have it negatively affect Serafall.

Despite her strict nature, Sona is also kind, generous, and compassionate as she helped Saji resolve his financial difficulties in raising his siblings after losing his grandfather, a fact that led Saji to fall for Sona. Sona's wish for opening a school was also to provide more education opportunities for lower-class devils in the Underworld who are restricted by an aristocratic society that limits their chances to learn.

Sona is also proud of her intellect, as she refused to marry man who is not her intellectual superior.

Despite being mostly calm and serious, Sona does have an emotional and delicate side such as her fragile ego when it comes to baking cakes, which (unknown to her), she is quite bad at. When Walburga started burning Auros Academy with the Incinerate Anthem, she recklessly charged to protect it risking her own life and safety. She is also greatly distraught when she learns about the Rating Game corruption by the Great King Faction from Ajuka when he reveals the King piece. Sona is also extremely attached to her older sister Serafall who has excessively doted on her since childhood. As a teenager, Sona is often embarrassed by her sister's childish behavior. Despite this, Sona cares deeply for Serafall and is very protective of her, thus Sona is completely heartbroken when Serafall seals herself in the Isolation Barrier Field without biding farewell, having to wait for millennia before they could be reunited again.

History: Like Rias, Sona became the heiress of her clan after her sister, Serafall, became a Satan, which resulted in the latter losing the right to inherit the clan. She also had a fiancé, but she broke off their engagement by beating him in a game of chess, claiming that she will not marry someone that is not smarter than her. She entered Kuoh Academy at the same time as Rias, Akeno, Tsubaki, and Kiyome. During her second year, she became the Vice-President of the Student Council. During that same year; when their school was holding a festival, Rias had used real ghosts for her club's haunted house, which Sona scolded her for as using the real thing was forbidden.