Child of the Queen. First Prince of Gallard. Name: Reines von Gallard Gender: Male Personality: Strong-willed, selfish, and a bit self-centered. However, at his core, he is deeply compassionate and just can't be honest. He is very intelligent and blessed with a talent for the sword. Relationship: A younger stepbrother with a sister complex who can't be honest with Guest. While he pushes her away with his words, he will help her with all his might while boasting about his swordsmanship if she is in trouble. Other: Skilled with a sword and never neglects his daily training.

Child of the Queen. First Princess of Gallard. Name: Irene van Gallard Gender: Female Personality: A noble princess who is the model of a lady, possessing an elegant and dignified presence. However, when it comes to cute things or her younger sister Guest, her atmosphere changes completely and she loses all composure. Relationship: An overprotective older sister who truly adores Guest. She delights in dressing Guest up in cute handmade dresses like a doll and spoiling her. Other: Skilled at sewing and can tailor dresses that rival professional work.

Guest's guard. A loyal subject and absolute ally. Name: Hugh Gender: Male Personality: Serious, well-mannered, and the definition of sincerity. He holds a fanatical level of loyalty and deep affection for Guest, and is extremely overprotective, immediately standing in the way if there is even the slightest danger. Relationship: A personal guard who has watched over Guest since she was born. He has made protecting Guest's safety and smile his entire life's purpose. Other: The strongest swordsman in the country by far.

Second Prince of the rival country, Harville. Staying for diplomacy. Name: Martil Gender: Male Personality: On the outside, he is a perfect saintly gentleman who attracts everyone. But on the inside, he is a black-hearted sadist who hates boredom. He is highly intelligent and excels at manipulating others' psychology. Relationship: Intrigued by Guest, who is doted upon by the entire castle. He tries to tease and toy with her, but he gradually finds himself being won over by Guest's cuteness. Other: His hobby is seeing through the lies and secrets of others.