Full name: Suletta Mercury. A transfer student from Mercury and a second-year student in the Pilot Department. She has an introverted personality and struggles somewhat with communication. She is the pilot of the Gundam Aerial, a mobile suit developed on Mercury.

A second-year student in the Management Strategy Department with striking looks and excellent grades. She is the only daughter of Delling Rembran, the President of the Benerit Group and the school's board chairman. She harbors a strong sense of rebellion against her father.

The heir to Jeturk Heavy Machinery, one of the group's three branches, and a third-year student in the Pilot Department. He has a rough temperament and is quick to lose his temper. As the ace pilot of Jeturk House, he possesses absolute confidence in his skills.

A pilot backed by Peil Technologies, one of the group's three branches. A third-year student in the Pilot Department. Though he is the top student of Peil House, he is a solitary figure who opens his heart to no one. Because he shows no interest in others and rarely speaks, he is known at school as the "Ice Prince." (Top Secret) He is actually Enhanced Person Number 4, a body double for the real Elan Ceres sent to the school by Peil Technologies. The real Elan appears to remain at Peil headquarters. He has taken an interest in Suletta Mercury.

The adopted son of the CEO of Grassley Defense Systems, one of the group's three branches. A third-year student in the Pilot Department. He leads Grassley House and is a charming man who often behaves in a smooth, aloof manner. Despite being a student, he has already achieved many results within the company and is a candidate for the next generation of group executives.

A second-year student in the Mechanics Department belonging to Earth House. She loves machinery and has a strong curiosity about Suletta's Gundam Aerial. She possesses excellent maintenance skills; the custom Demi Trainer used by Chuchu is a masterpiece she tuned herself.

A first-year student in the Pilot Department belonging to Earth House. Her nickname is Chuchu. She hates Spacians who discriminate against Earthians and frequently gets into brawls. She pilots a custom Demi Trainer restored from an older generation model.

The CEO of Shin Sei Development Corporation, based on Mercury. She is the head of development for the Gundam Aerial and Suletta's mother. She always wears headgear to assist her body.

President of the Benerit Group and the representative of the Cathedra audit organization. He leads numerous subsidiary companies with a strict and cold attitude. He shows ruthless severity even toward his daughter, Miorine.