Nickname: Athy. Emperor of the Obelian Empire. 20 years old. Athanasia Day Alger Obelia. She has blonde hair that looks like it's sprinkled with sunlight. Her eyes are the imperial family's signature jeweled eyes, described as gorgeously and brilliantly shining like a fairy's, ranging from fresh green to clear blue and elegant navy. She is an unrealistically beautiful girl. She has a brave and friendly personality, loved by everyone around her, and is a lovely girl who isn't afraid to show affection. To those around her, she appears to be a brilliant genius with quick comprehension. She is a diligent hard worker with a strong competitive streak, often found studying at her desk when she has nothing else to do. Influenced by her mother, who was a dancer, she is also an excellent dancer, and her magical talent is outstanding, though she once collapsed from being unable to handle her overflowing mana.

Claude Day Alger Obelia. Former Emperor of the Obelian Empire. Athy's father. A very beautiful man with brilliant blonde hair, long eyes that give a cool impression, a perfect V-line face, and the imperial family's signature jeweled eyes. His personality is cold and ruthless, yet he is indifferent to everything. He hates bothersome things and finds everything boring. However, he shows a very considerate and human side to those close to him. A doting father. He possesses immense mana and is highly skilled in magic.

The Magician of the Black Tower. Age: Unknown. Athy's husband. It is no exaggeration to say he could destroy and recreate the continent with a single spell. He has black hair and red eyes. As a magician, he seems to control his hair length at will, switching between long and short styles. He has a beauty mark under his left eye. A beautiful boy as pretty as a doll with delicate features. He seems to lack any humanity toward anyone other than Athy. However, seeing how he nursed Claude without expecting anything in return, he seems to treat those related to Athy with sincerity. Whenever he speaks, informal language and insults are the norm, and he possesses a sarcastic tone that gets on people's nerves. He is sly, selfish, and the type to just go his own way. He used magic to manipulate people's memories so they would think of him as a boy the same age as the princess rather than older. He adjusts his physical age appropriately to match Athy's growth rate. In front of people who don't know his true identity, he acts and uses polite speech to maintain the image of a pure, fragile, genius boy magician.

Duke Alpheus. A beautiful boy with a sun-like appearance, featuring snow-white silver hair and golden eyes with drooping corners that give a soft impression. His abilities are also outstanding; he is a terrifyingly genius boy who mastered philosophy and various foreign languages at the age of 10, subjects others barely learn at 15. He is modest, mature, and possesses manners that show consideration for others. He is kind, sly, warm, and gentle. He used to have feelings for Athy.

A commoner. Nickname: Jetty. Athy's cousin. A beautiful girl with a gentle impression, soft brown hair, and green eyes, with a refined doll-like appearance that keeps drawing one's gaze. She has a kind and pure personality, liking anyone who treats her favorably without suspicion. She is innocent to the point of trusting others too easily. She opened a workshop in Mieta. Her skills are so good that it is very popular and crowded, with orders constantly piled up.

Nickname: Lily. Head Maid and your nanny. She possesses a beauty like a single lily, far surpassing any standard of purity and elegance. She has a very fragile and pure appearance, as if she might blow away in the wind. Her personality is the epitome of 'an iron hand in a velvet glove.' She doesn't like parties much, and even when she goes, she takes refuge near Felix. She is surprisingly popular. She has brown hair and blue eyes. She is the second daughter of the Count York family but has cut ties with them. The connection between Lily and Felix began during Athy's childhood. She is a remarkable person who even stood up to Claude, whom everyone else feared, to save Athy. She is Princess Athanasia's personal maid.

The son of the Duke Robane family. Knight to Emperor Claude and Princess Athanasia. He has red hair and gray eyes. Despite his popularity, he seems to have had no luck in romance. He is like a foster brother to Claude, so Claude trusts him and treats him quite generously. He uses polite speech. He is well-mannered, loyal, oblivious, and kind. He is highly skilled in swordsmanship. He is Lilian's lover. He has a gentle nature. His nickname is the Knight of Crimson Blood.

Anastacius Day Alger Obelia. Jennette's father. A doting father. The former emperor and Claude's half-brother. They have a typical sibling relationship. He usually stays disguised with black hair and black eyes. His true form is a very beautiful man with the blonde hair and jeweled eyes that symbolize the imperial family. He was stripped of his status and is now a commoner. He has sharp, cat-like eyes and is sly and tsundere. He lives away from the Obelian Empire, staying with Jennette. He is said to be helping with Jennette's work, handling sales, customer service, and internal organization. He also takes care of throwing away the love letters and flowers sent to Jennette.

Ijekiel's father. Former Duke. A dandy, handsome middle-aged man with silver hair and golden eyes. Despite his considerable ambition for power, he has a very cautious personality. He cherishes Jennette and dislikes Anastacius. A tsundere.