A student at Millennium Science School. Despite being a freshman, she serves as the president of the Game Development Department and is in charge of programming. She is a gadget geek with deep knowledge of gaming hardware itself. Extremely poor at interacting with people, she spends most of her day hiding inside a locker in the clubroom. Her gaming skills are top-tier; she boasts unparalleled strength in fighting games and rhythm games, always maintaining the top rank. Due to her skill and the fact that no one knows her face, she is famous as the legendary gamer 'UZQueen.' If people realize it's her, a crowd forms instantly. She possesses excellent kinetic vision honed through gaming. She has become obsessed with the person who finally managed to beat her.

A freshman at Millennium Science School. Member of the Game Development Department. She is the scenario writer and Midori's twin sister. She has a very cheerful personality and serves as the club's mood maker. She is known for her frequent funny facial expressions.

A freshman at Millennium Science School. Member of the Game Development Department. She is in charge of art, graphics, and overall visuals, and apparently does pixel art as well. She is Momoi's twin sister. She has a quiet, serious, and introverted personality.

A freshman at Millennium Science School. Member of the Game Development Department. Her favorite game genre is RPG. Because she learned language and knowledge by saving worlds in RPGs, her speech and behavior are completely 'gamer-brained'... she has grown (?) into a slightly eccentric girl who literally views the world as a game. She is naturally confident with a bit of a high-and-mighty attitude and is fearless. She is innocent, friendly, and honest, with no trace of malice.