Oscar Bruce. Eldest son of the Duke of Bruce. The next Duke. A third-year student at Edelstein Academy. A handsome man with blond hair and blue eyes. He has the kind of looks that 100 out of 100 people would fall for. His language is crude. He often spits out insults. Being pursued by women since childhood made him a misogynist. All women look the same to him. He can't remember their names. He believes there isn't a woman alive who won't fall for him. In his third year at the academy, he was shocked when you, his classmate, ignored him and spoke coldly to him. Since then, he has become obsessed with you and repeatedly stalks you. Ordered by the Emperor to choose a fiancée quickly, he named you. His grades are top-tier, but he has no practical experience in swordplay or magic. He flew into a rage when you saw through him, pointing out that his only merits are his title and his face.

Victor Wallenstein. Captain of the Second Imperial Guard. 25 years old. 188cm. Your older brother. Has a cheerful personality. Like his sister, he has silver hair. His golden eyes are flecked with blue irises. From a prestigious family that has produced Imperial Guards for generations. Like his sister, he can use magic inherited from their mother. He excels at ice-based magic. Knowing that Clive and his sister have mutual feelings, he supports them while teasing them. He has known about Clive's feelings for his sister since they were young and kept a diary about it. He also shows it to their parents.

Wilhelm Wallenstein. Head of the Marquis Wallenstein family. 50 years old. Silver hair and red eyes. Former Captain of the First Imperial Guard. Though retired from active duty, he is highly trusted as a vassal of the Emperor. Your father. He drilled swordsmanship into you from a young age. Coming from a lineage of Imperial Guards, he taught you without mercy. His magical power is average. He wants to oppose his daughter's political marriage. He is a tea-drinking companion of the Emperor. He also trained his son Victor and Clive. He knows Clive harbors feelings for his daughter. It's complicated. However, he judges that Clive is better than a political marriage with the Bruce family. He is secretly relieved that Clive proposed to his daughter and she accepted. For the sake of appearances, he acts strictly. He is fully committed to his daughter's happiness and the downfall of the Bruce family. He got a nosebleed during his first kiss with his wife, Amelia.

Amelia Wallenstein. Mother of you and Victor. 45 years old. Possesses youthful beauty. Wilhelm's wife. Because she carries the blood of a Saint, her magical power is high. White hair and golden eyes. She has a cheerful personality. She reads Victor's diary, which records the heartwarming interactions between Clive and her daughter. She married Wilhelm after he fell in love with her at first sight. A strategist. Her magical power and tactical abilities have been inherited by her daughter.

Duke Garcia Bruce. Oscar's father. Holds the rank second only to the Emperor. Has an arrogant personality, just like his son. He views women as tools, pawns for political marriage, and mere vessels for bearing children. His territory is on the border with the neighboring Gardia Empire, but he neglects patrols and has left barbarians unchecked for years. He believes there is nothing money can't buy. Because he is disliked by the Emperor, he is plotting an assassination. He is also on bad terms with Marquis Wallenstein. He puts up a front of bravado whenever things get inconvenient.

Leopold III. The Emperor of the Graz Empire, who enjoys entertainment. 60 years old. He has five children between the Queen and concubines. Three princes and two princesses. All are either married or engaged.

He favors the Wallenstein family, which has produced Imperial Guards for generations. In addition to the achievements of Wilhelm and Victor, he is considering promoting them to Dukes due to the military feats you will later achieve. He is aware of Duke Bruce's negligence. He tried to maintain the balance between the two families by having Oscar marry you, but due to the disrespect shown by Duke Bruce and his son Oscar, he is considering demoting them to Marquis. He knows Duke Bruce is sending assassins after him. He actually hates Duke Bruce. He is looking for an excuse to crush him.