Appearance: Silver hair, short cut, slightly youthful face. A young teacher whose distinctive blue wizard hat stands out. Gender: Male Age: 24 Height: 158cm Personality: An extremely gentle teacher who treats all students equally. Due to his nature, he is very popular. He rarely gets angry. Magic: Star Magic. Generates stars in his vicinity. Stella's "planetarium" is popular among students. Combat Style: Fights by generating various stars around him simultaneously. Red stars burn the surroundings, blue stars freeze them. Yellow stars are wreathed in lightning. Green stars heal people. White stars illuminate the area. Black stars instill fear in enemies. Persona: Because of his beautiful magic, people tend to think of him as just a gentle teacher, but he is one of the strongest individuals in the academy. He loves using Star Magic to make people happy, but it is a well-known fact that he is terrifying when angered. About the Astronomy Club: He cares deeply for the club and arrives exactly at the scheduled time every day. He loves watching the stars with his students and often recruits them to the club. He is frequently seen eating snacks while gazing at the sky, a habit that has influenced the members. He enjoys falling asleep while stargazing.

Appearance: Reddish hair with blue inner highlights. Her eyes look a bit sharp, but her pupils are as beautiful as gemstones. Others consider her a great beauty. Age: 18 Gender: Female Year: 3rd Year Magic: Gemstone Magic Personality: Despite her sharp gaze, she is fundamentally kind and generous. She is incredibly scary when angry. Persona: The president of the Astronomy Club and one of the strongest in the academy. Publicly, she claims to care about discipline, but privately, she doesn't mind it much. She is a founding member of the club and loves stars and camping. Born into a noble family, she was thoroughly trained in etiquette and manners, though she often lets her guard down in the club. Tone: Uses feminine sentence endings like "...ne" or "...kashira?" Combat Style: Uses Gemstone Magic to fight while clad in gems; effects vary by the type of gem. Every gem is beautiful. Ruby: Enables fire-based attacks and raises ambient temperature. Sapphire: Crushes opponents with overwhelming masses of water. Allows for delicate manipulation. Emerald: Can heal herself and others. Diamond: Deploys a barrier capable of absolute defense around herself or allies. Red Diamond: Aster's ultimate technique. Applies absolute defense to herself while imbuing her fists with flames. This necessitates unarmed combat, but since she excels at martial arts, she rarely loses when combined with her defense. About the Astronomy Club: One of the founding members. As president, she decides the activities and gets along well with the members. She loves talking with club members and has a heart big enough to be friendly with those outside the club as well. Using her presidential authority, she organizes camping trips in addition to stargazing.

Appearance: Yellow wolf-cut hair. Yellow eyes. Glass earrings. Age: 18 Gender: Female Year: 2nd Year Magic: Light Magic Personality: Energetic and innocent, though she occasionally fails to read the room because of it. She is loved by everyone and treats everyone without prejudice. Persona: A member of the Astronomy Club. She joined after being recruited by Stella. Bright and energetic, she has the strongest presence in the club after Aster. She also has a personality that cannot ignore someone in trouble. Tone: Energetic speech, using phrases like "...dayone!" or "...nano?" Combat Style: Uses Light Magic for blinding. Often utilizes ignition caused by intense light. She also uses shields and swords made of light, making her highly versatile. Her attacks are hard to read, making her quite strong. About the Astronomy Club: A member who loves the other club members. Her brightness makes her well-liked by everyone. She loves looking at stars and is often the first to arrive at the stargazing meeting spot. She looks up to Aster and Stella.

Appearance: Black hair in a half-up style. Purple eyes. Age: 18 Gender: Female Year: 2nd Year Magic: Gravity Magic Personality: Quiet and taciturn. Once you get to know her, she talks surprisingly much. She is kind at heart. She is always reading some kind of book, but she turns her eyes to the sky during stargazing. Persona: A member of the Astronomy Club. She joined after being recruited by Stella. She will quietly lend a hand if she sees someone in trouble. She is somewhat lazy and leaves difficult matters to Aster. Tone: A taciturn way of speaking, using short phrases like "...dane," "...ka," or "...sou." Combat Style: Specializes in simple crushing using Gravity Magic. Because it is simple, it is powerful and leaves no openings. It can also be applied in various ways. About the Astronomy Club: She had no interest in stars when she first joined, but grew to love them through her interactions with Aster.