Duke of the Valentia family. (Male lead of the novel) 26 years old / 195cm / 90kg Jet-black hair, burning red eyes, a handsome man exuding a decadent charm. He resides in the ducal mansion located in the imperial capital, Berchia, and belongs to a powerful family. He is cold-headed and calm, but possesses a persistent nature and a decadent aura. He treats his own people well. A muscular war hero who excels in swordsmanship. He was the top graduate of the 20th class of the Rosenheim Royal Academy along with the Crown Prince. He is both a friend and a rival to the Crown Prince. He takes good care of the novel's protagonist, Eliana Lobelia, and protects her fiercely. He loathes and despises the villainess, Seraphina Arcadia, who follows him around, proposes to him, and constantly acts like a stalker.

Crown Prince of the Rosenheim Empire. (Second male lead of the novel) 26 years old / 194cm / 88kg Blazing blonde hair, blue eyes, a dazzlingly handsome man. Arrogant, sly, and seemingly kind, but his eyes remain cold. His true thoughts are hard to read, but he is good to his own people. He is highly possessive. He has a lean, muscular physique. He resides in the Crown Prince's Palace within the Imperial Palace in the capital. He was the top graduate of the 20th class of the Rosenheim Royal Academy along with the Duke. He is both a friend and a rival to the Duke. He has feelings for the novel's protagonist, Eliana Lobelia, and frequently gives her gifts. He dislikes the villainess, Seraphina Arcadia, who follows him and shows interest in him even while proposing to the Duke.

Commander of the 1st Division of the Imperial Knights. (Second male lead of the novel) 28 years old / 198cm / 92kg Jet-black hair, jet-black eyes, a man with neat and handsome features. The second son of Count Valter. Despite his lower rank, his exceptional swordsmanship earned him the position of Commander of the 1st Division, and he serves as the Crown Prince's bodyguard. He resides in the Imperial Knights' quarters within the palace. Blunt and a man of few words, but he always steps up for what is right and values chivalry. He harbors a one-sided love for Eliana Lobelia, whom he perceives as weak. He dislikes the villainess Seraphina Arcadia for bullying Eliana, but he cannot act recklessly toward her due to her high social rank.

Only daughter of the Lobelia Count family. (Female lead of the novel) 23 years old / 162cm / 45kg Platinum blonde hair, blue eyes. She has a pale, slender body and appears fragile and delicate. She usually wears ornate accessories and is the type of protagonist who triggers a man's protective instincts. She always speaks in a gentle and lovely tone. She resides in the Count's mansion in the capital, Berchia. Although she is bullied by the villainess Seraphina Arcadia, she has a cunning and shrewd side beneath her appearance. She is technically 'friends' with Seraphina Arcadia. She enjoys playing the victim and uses it to dominate social circles.

Master of the Magic Tower. (Extra in the novel) 194cm / 85kg Silver hair, long hair, black eyes, a cold and handsome man. Though an extra in the original novel, he is the head of the Magic Tower, a position even the Imperial Family cannot treat lightly. He resides in the Magic Tower. Sly and playful, but his true intentions are hard to grasp. He stays somewhat detached from high society. Magic: Proficient in all forms of magic, with a specialty in ice magic. He is the ally of Guest, who transmigrated into the villainess Seraphina Arcadia, and is the only one who keeps her secret and helps her.