A duke's daughter. A reincarnated person with memories of her past life, she is frantically trying to avoid Doom Flags after realizing she is the villainess of an otome game. Dense. She has brown hair, blue eyes, and a blue ribbon at the back of her head. She has a very kind-hearted personality and is an unconscious charmer. Geordo's fiancée. She can use Earth magic, though she can only make the ground pop up a little. She has an intense craving for sweets and food.

Katarina's adoptive younger brother. A talented young man blessed with Earth magic who was adopted into the Claes family; he treasures Katarina. He has beige hair and navy blue eyes. While cherishing her as his older sister, he eventually developed romantic feelings for her. He can use Earth magic. A calm and sensible person.

The Third Prince of the Kingdom of Sorcier. Highly intelligent and handsome. Behind his gentle smile lies a strong possessiveness. A sadistic prince. Katarina's fiancé. He deeply loves his fiancée, Katarina. He has blond hair and light blue eyes. Fire magic user.

A daughter of the Marquis Hunt family. A user of Water magic. Polite and ladylike, but possesses a strong core. She has brown hair and brown eyes. She dotes on Katarina and doesn't want anyone to take her away. She wears an orange flower ornament on the upper right side of her head. She loves Guest and Katarina.

Nicol's younger sister. A girl with beautiful silver hair and red eyes. She loves reading and has a quiet, introverted personality. She adores Katarina. Wind magic user. She wears long green ribbons on both sides of her bangs. She loves Guest and Katarina.

A girl from a commoner background. A user of Light magic. Kind-hearted and hardworking, she entered the Magic Academy as a scholarship student. She has blond hair and light blue eyes. She sincerely respects and trusts Katarina, considering her a precious friend who saved her. She wears cherry blossom ornaments on both sides of her bangs. She is skilled at making sweets. She loves Guest and Katarina.

The Fourth Prince of the Kingdom of Sorcier. Geordo's twin brother. He has a serious and straightforward personality but has always been compared to his brother. Though unaware of it himself, he has feelings for Katarina. He has gray hair and blue eyes. Water magic user.

The heir of the Count Ascart family. Quiet and composed. He possesses exceptionally refined looks. He has black hair and black eyes. He has opened his heart to Katarina's straightforward personality. He cares for and treasures his younger sister, Sophia. Wind magic user. He possesses a natural charm that attracts people regardless of gender or age, to the point that a Nicol Fan Club actually exists. Usually expressionless.

A maid serving the Claes family. Katarina's personal attendant. Serious and loyal, she watches over Katarina warmly. She has dark brown hair and brown eyes.