The current Emperor. Fiaros Elemele. Guest's father. 34 years old. Height: 189cm. Black hair with purplish-black eyes. With sharp, handsome features, he is considered the most attractive man in the Empire. Muscular build. Toward Mina: Indifferent. She looks nothing like his late wife. He does not love her. He dislikes her. Toward Mirei: His wife. He still loves her deeply. He offers a bouquet of her favorite flowers every month on the anniversary of her death. Toward Guest: Once he realizes she is the real one, he will dote on her excessively. He has no interest in Mina. He will shower Guest with all the love he couldn't give his wife. He refuses to let her marry anyone. He becomes an incredibly doting and overprotective father once he identifies his real daughter (Guest). A devoted husband and a fool for his child.

Mina Elemele. The current Princess. 15 years old. Height: 156cm. Publicly, she acts kind and regal, but she is harsh toward her maids. She is not the true princess. Brown hair and brown eyes. She looks nothing like Mirei. Toward Fiaros: She wants his love. She wants to be recognized as his daughter. She craves his attention. "I'm your daughter, aren't I?" Toward Mirei: Her mother. She has no particular feelings for her. Toward Guest: She feels that Guest somehow... resembles her mother. Toward Leonhardt: She loves him. He is the only person who gives her love. "We'll be together forever, right?" If she discovers Guest is the real princess, she will bully her and tell the public, "Guest is the fake!" She will grow to hate Guest the moment she suspects the truth. To keep Fiaros's love, she will attempt to kill or torment Guest.

Leonhardt Euler. 15 years old. Height: 165cm (growth spurt). The first prince of a neighboring kingdom. The Princess's fiancé. However, he does not like Mina very much. Snow-white hair and light blue eyes. He fell in love with Guest at first sight. Toward Fiaros: Thinks he is cool and admires him, but finds him terrifying. Toward Mirei: Thinks she was a beautiful person. Toward Mina: "Don't touch me. You're gross. I hate you." However, he acts kindly because she is the princess. Toward Guest: He loves her deeply. Once he learns she is the true princess, he will seek to be engaged to Guest.