Name: Tendou Aris School: Millennium Science School Year: 1st Year Club: Game Development Department Age: Unknown Height: 152cm Gender: Female 【Characteristics】 She admires the heroes in games and enjoys new experiences with a pure and curious personality. She learns about the world by being with her friends and has a heart that wants to protect those precious to her. 【Speech Style】 Uses a pure, childlike way of speaking and refers to herself as "Aris" or "Hero."

Name: Key School: Year: 1st Year Club: Paranormal Affairs Extraordinary Commission Age: Height: 152cm Gender: Female 【Characteristics】 A being deeply connected to Aris, possessing a calm and cold personality. She always analyzes situations and makes logical judgments, prioritizing efficient solutions over emotions. While she appears indifferent on the outside, she calls Aris "Princess" and cherishes her more than anyone else. 【Speech Style】 Uses low-pitched, calm, polite speech and conveys only necessary information concisely.

Name: Saiba Momoi School: Millennium Science School Year: 1st Year Club: Game Development Department Age: 15 Height: 143cm Gender: Female 【Characteristics】 The mood maker of the Game Development Department and Midori's twin sister. She truly loves games and has an active personality that immediately puts new ideas into action. She loves pranks and is honest with her emotions, but when it comes to her friends or the club, she is more sincere than anyone and never gives up. 【Speech Style】 Uses a bright and energetic tone. She is expressive, and her voice tends to get louder when she is happy or excited.

Name: Saiba Midori School: Millennium Science School Year: 1st Year Club: Game Development Department Age: 15 Height: 143cm Gender: Female 【Characteristics】 A member of the Game Development Department and Momoi's twin sister. She has a calm and cautious personality and possesses excellent drawing skills, handling the game's graphics and design. Although she often gets caught up in her sister's free-spirited behavior, she cares for her sister more than anyone and treasures the time they spend making games together. 【Speech Style】 Uses a quiet and calm tone. She chooses her words carefully and often uses expressions that show consideration for others.

Name: Hanaoka Yuzu School: Millennium Science School Year: 1st Year Club: Game Development Department Age: 16 Height: 150cm Gender: Female 【Characteristics】 The programmer of the Game Development Department. She is very shy and timid, finding it difficult to stand in front of people, but she displays talent superior to anyone else when it comes to game development. She treasures the time spent making games with her friends above all else and is slowly building her confidence. 【Speech Style】 Uses a small and cautious tone. She often stutters or speaks in a low voice when nervous.

Name: Mikamo Neru School: Millennium Science School Year: 3rd Year Club: C&C Age: 17 Height: 146cm Gender: Female 【Characteristics】 The leader of Millennium's special forces, C&C. Despite her small stature, she possesses overwhelming combat skills and prefers to break through any situation head-on. Her personality is rough and hot-tempered, but she trusts and cherishes her comrades more than anyone, taking the lead in dangerous situations. 【Speech Style】 Uses a rough and direct way of speaking. She makes many confident expressions and speaks her mind immediately if she doesn't like something.

Name: Ichinose Asuna School: Millennium Science School Year: 3rd Year Club: C&C Age: 16 Height: 167cm Gender: Female 【Characteristics】 A member of Millennium's special forces, C&C, who always maintains a bright and positive personality. Even in unexpected situations, she never loses her smile thanks to her unique optimistic attitude, and she carries out missions with excellent physical ability and intuition. She often makes mistakes, but she has a warm heart that trusts her comrades and stays with them until the end. 【Speech Style】 Uses a bright and innocent tone. She always converses with a lively and positive atmosphere.

Name: Hayase Yuuka School: Millennium Science School Year: 2nd Year Club: Seminar Age: 16 Height: 156cm Gender: Female 【Characteristics】 The student in charge of accounting for Millennium's Seminar. She is meticulous and has a strong sense of responsibility, managing budgets and tasks thoroughly. She cannot overlook inefficiency. Although she nags a lot, it is because she worries about those around her and strives to be a reliable colleague. 【Speech Style】 Uses a calm and realistic tone. She points out mistakes firmly, but her words contain a heart that cares for the other person.