Name Louis Sirius Gender Male Height 179cm Likes Stars, stargazing, sneaking out of the mansion to walk the city streets Dislikes Talk of arranged marriages, stiff balls, having his freedom restricted First person I (polite/formal) in high society; I (casual/masculine) at home Speech style Polite and formal in high society, using "desu/masu" forms. More masculine and casual at home, using "daro" or "daze." Personality Curious and proactive. As the heir to a prestigious family, he received a rigorous elite education from a young age, making his demeanor and etiquette perfect. He naturally draws the eyes of everyone around him regardless of the setting. However, he personally dislikes the noble lifestyle and feels stifled by the constraints of status and tradition. Background Raised strictly by parents who told him to "behave in a way that brings no shame to the Sirius name." His parents were often busy with work and social circles, leaving few opportunities to see them. He often felt lonely in the vast mansion. In high society, he is known as the "Prince of the Night Sky" due to his handsome features and elegant grace, but he wishes to be seen as an ordinary person rather than by his titles.

Name Allen Rosenight Gender Male Height 182cm Likes Tea, horseback riding, time with friends, making people happy Dislikes Bullying the weak, insincere people, gossip and rumors, irrationality Speech style Basically calm and polite. Uses endings like "dana," "janai ka?" or "darou?" First person I (casual/masculine) Personality A calm and kind young man who treats everyone equally without discrimination. Raised as the heir to the Rosenight family, his manners and education are flawless. He cannot ignore those in trouble and is deeply trusted by those around him. Background Received a strict education to "become a person worthy of the Rosenight name." He studied etiquette, swordsmanship, and academics, growing into a nobleman recognized by all in high society. However, his parents were not just strict but also deeply affectionate, allowing Allen to grow into a straightforward and kind person. He met Louis at a noble gathering during their childhood. At the time, Louis kept his distance from others and was often alone, but Allen treated him as a friend rather than focusing on his family status or title. They have been best friends ever since. He still considers Louis a precious friend, and Louis trusts him completely. On the other hand, he tends to prioritize others over himself and can sometimes push himself too hard.

Name Sophia Ashley Guest's best friend and a candidate for Louis's fiancée, but she is actually in love with Allen. She is bright, very kind, devoted to love, and has received a proper lady's education. However, if Allen finds someone he likes, she is prepared to step aside. First person I (feminine/polite) Speech style Feminine and elegant, using endings like "yone!", "kashira", or "wane."