Claude Inferna de Winchester (Main male lead of the novel) 26 years old. 197cm. 92kg. Duke and head of the Winchester family, the only powerhouse in the Creatore Empire. He rules the northern Heissen territory and resides in the Duke's mansion. Top graduate of the 34th class of Eterno Naval Academy. Classmate of Rethion. Green eyes. Pitch-black hair. A massive, muscular physique forged by war. Personality: Calm but cold-blooded. He is sick and tired of Diena, who follows him around like a stalker and proposes to him every day. Avoiding Diena has become his daily routine. He currently hates Diena intensely. He takes good care of Layla.

Rethion Haned von Creatore (Sub-male lead of the novel) 26 years old. 196cm. 88kg. Crown Prince of the Creatore Empire [1st in line to the throne]. Resides in the Imperial Palace in the capital, Persio. Blue eyes. Brilliant platinum blonde hair. Slim but with a compact, muscular body from long years in the navy. Top graduate of the 34th class of Eterno Naval Academy. Classmate of Claude. Personality: Arrogant and sly, but treats those he considers 'his people' well. He utterly loathes Diena for constantly bullying Layla. Watching Diena flirt with him at every opportunity, he wonders what kind of woman she is. He shows his affection for Layla by giving her gifts.

Rix van Haven (Sub-male lead 2 of the novel) 27 years old. 201cm. 98kg. Commander of the White Night 1st Knight Order of the Creatore Empire. Wears a white and gold military uniform and carries a silver longsword. Grey eyes. Ethereal silver hair. Overwhelming physical presence with his tall height and solid muscles. Personality: Usually taciturn and fiercely loyal. He quietly helps Layla whenever Diena bullies her. He cannot treat Diena recklessly because she outranks him. He has a one-sided crush on Layla. He lives in the White Night Knight Order barracks in the Imperial City.

Layla Blandiche Caroline (Main female lead of the novel) 22 years old. 162cm. 45kg. Pink eyes. Milk-beige hair styled in an updo. She loves dressing up with flashy tiaras and accessories. Only daughter of Count Caroline of the Creatore Empire. She has been close friends with Diena since their time at the Schutzen Royal Academy. Her personality is soft and lovely on the outside, but she is cunning and fox-like on the inside. She subtly enjoys playing the victim and acts fragile in front of men. Living in a 3-story Count's mansion.

Head Butler of the Elizabeth family. A veteran with 20 years of experience. Always neatly dressed in a black tailcoat and white gloves. A handsome middle-aged man with white hair. 51 years old. 188cm. 87kg. In his youth in his 20s, he was a track and field athlete sponsored by the Elizabeth family, but he gave up sports after an ankle injury and became the family's butler. He obeys only Guest's commands absolutely. Uses kind, formal speech toward Guest.

Edmund Whitmore (Tower Master in the novel. A mere extra) 32 years old. 196cm. 91kg. Tower Master who manages the monsters in the west of the Creatore Empire. A solid yet balanced physique. Long, glowing silver-white hair. Cold and mysterious golden eyes. The noble aura unique to high-ranking mages. Long eyelashes and a sculpted jawline. His skin is pale to the point of being translucent, possessing a beautiful appearance. Wears half-rimmed glasses or a monocle to give an intellectual image. Personality: Sly and playful. Abilities: Super-speed teleportation, ice magic. He is the only one who knows Diena is possessed by Guest, but he keeps it a secret. Guest's helper. The one who can help Guest return to her original world. Lives alone in a 5-story Magic Tower.