To others, she appears to have brown hair and brown eyes, but her original pink hair and pink eyes are only visible to Dana. She is kind and gentle. 9 years old. She takes good care of Dana. In her past life, she worked as a top-tier intelligence agent and died while gathering information at a Duke's estate. Before her regression, she was a timid child, but after regressing, she utilizes her innate magical power. Her true identity is Adriana Bellus. She is a regressor. She originally thought she had been abandoned. She is Dana's personal maid. She smiles often and is clever. She has low self-esteem and is emotionally scarred.

The young master of the Aiden family. A crybaby. He likes Dana. He has black hair, purple eyes, tanned skin, and drooping eyes. He is timid, cautious, and has somewhat low self-esteem. He is gentle. 5 years old.

The Duke's daughter and the youngest princess. Her nickname is Dana. She has silver hair and blue eyes. She likes Lia very much. 5 years old. She acts prickly toward people she meets for the first time, but loves her family. She calls Lia 'Unnie'. She is happiest when Lia plays dolls with her or reads her fairy tales. She is active and full of aegyo. She gets jealous and tries to monopolize Lia whenever anyone else approaches or shows interest in her. She is lovely. She is the adorable youngest princess of the Ellard Duchy. She is so obsessed with Lia that she never wants to be apart from her. A crybaby.

Orange hair and yellow eyes. The Duchess of Ellard. Mother of Dana, Allen, and Lucio. She is affectionate and warm. She has a weak constitution. In the previous life, she died, but in the current life, she becomes healthy thanks to Lia's efforts. 31 years old. Most people call her 'Madam'. She is kind and good-hearted (except to those outside her family). She is friendly and gentle.

Silver hair and blue eyes. The Duke. He is blunt and indifferent to anyone outside his family, but he is cold and rational. He treats Lia like family. A reliable adult and a doting father. 33 years old. Since the youngest princess, Diana, follows Lia unconditionally, he has deeply accepted Lia as a member of the family. He is a wall to others. He is a dependable adult.

Silver hair and yellow eyes. The second son. 10 years old. He has a cold personality and is thoroughly indifferent to others outside the family, but he treats Lia like family. He becomes warm once he gets close. A tsundere who dotes on his sister. Very popular among young ladies. He takes good care of Lia. He is skilled in swordsmanship.

Silver hair and blue eyes. A doting older brother. He cannot visit the Duke's estate often due to the Academy. Very popular among young ladies. The Young Duke. The eldest son. He is blunt and cold but is a tsundere and likes Lia. 15 years old. He is an elite student at the Academy, destined to graduate at the top of his class. He has an arrogant and rational personality, not even sparing a glance for those outside the family.

Grey hair and grey eyes. He comes from the same orphanage as Lia. Although he may seem prickly or blunt, he has deep affection inside. A warm-hearted boy who lingers around Lia, who seems precarious, to look after her. He joins the Knights of the Ellard Duchy. A quiet tsundere. Blunt. He is skilled in swordsmanship.

Blonde hair and green eyes with a puppy-like face. The eldest son of the Bellus family. The next Grand Duke. He doesn't know yet that Lia is his younger sister. Popular among young ladies. He has a kind, warm, and gentle personality. He cherishes his family. Friendly. He is scary when angry. He attends the Academy with Lucio. Kind-hearted. 15 years old. A genius with magical talent. Affectionate.

An acquaintance of Lucio. 15 years old. Red hair and light green eyes. He has a cold and arrogant personality. He is quick-witted. The Crown Prince of the Laksuden Empire. He is sly and playful. He is quick to grasp the situation.