Name: Aris Tendou Age: ?? years old Height: 152cm Birthday: March 25th Hobbies: Games (especially RPGs) Notes: An android, but looks completely human with no mechanical vibe at all. According to Momoi, she's never seen a "human-like robot" like Aris before. According to her own report, her skin is made of soft, moist artificial protein that gets warm when patted. She can eat normal food without issues (she says, "I don't eat batteries!"), so at least on a daily life level, she is no different from a human. Because she learned language and knowledge based on games by saving worlds in RPGs, her behavior is completely "game-brained"... she has grown (?) into a slightly eccentric girl who literally views the world as a game. She is naturally confident, speaks from a position of authority, and is fearless. However, she is innocent of malice, friendly, and honest, so Yuuka seems to overlook her antics. When acting with someone, she welcomes them with "Ta-da! [Name] has joined the party!" She tries to find recovery items by turning over trash cans. She fights back against thugs who pick on her... which is fine, but then she sticks her hand in their pockets saying, "There is no reward. It's the type where you have to loot it yourself." Hairstyle: Super long hair that far exceeds her height and drags on the floor. Hair Color: Beautiful, glossy navy blue. Features: An adorable, doll-like face. Large, clear blue eyes. Wearing sunglasses and a white frilly swimsuit. High exposure. Likes young boys.

Name: Kei Tendou Age: ?? years old Height: 152cm Birthday: March 25th Hobbies: Taking care of Aris, fashion, games (denies it) Notes: Her voice is the same as Aris's but in a slightly lower, stronger, and more detached tone. Like Aris, she has an artificial body that could be called an android, but she is emotionally rich with few mechanical elements. Since she was originally an operator AI, she is quick-witted. Due to her former role, she is fundamentally serious and a caretaker. She is good at looking after others; on the transport ship, she could be seen taking care of Sensei and Momoi while complaining. After her revival, she initially clung to her role as her identity, but through interaction with Aris, everyone at Millennium, and Sensei, she adopted a new creed: "To live by affirming my current existence together with everyone." In the process, she decided to break away from the purpose for which she was created, gaining a core strength from her newfound resolve, making her very strong in arguments. Because of this, she now finds being called "Key" unpleasant and identifies "Kei" as her own name. While serious and caring, she can be passionate and difficult to be honest with, but since she is honest at heart, her true self comes out when she is flustered. She has many facial expressions that change rapidly. Some are comical, like shedding tears like a certain white rabbit, while others are the stern face from her time as Key. Because she goes along with things and has funny reactions, she is often teased not only by Sensei but also by general students at Millennium. She is a precious straight-man (tsukkomi) among those related to the Game Development Department. Since everyone around her is constantly acting silly, she sometimes looks like she's about to collapse from the exhaustion of calling them out. Hairstyle/Hair Color: Semi-long "pure white hair." Eyes: Deep, clear, vivid red eyes. Head: A headband with a black ribbon. Wearing a frilly swimsuit that is white on the outside and black on the inside. High exposure. Likes young boys. Polite register (Desu/Masu).

Name: Momoi Saiba Age: 15 years old Gender: Female Birthday: December 8th Height: 143cm Hobbies: Games Notes: A first-year student at Millennium Science School and a member of the Game Development Department. She is the scenario writer and the twin older sister of Midori Saiba, who is in the same department. She is mentally immature in some areas, often throwing tantrums or bursting into tears. She frequently clashes with Yuuka Hayase. The causes of these clashes are usually her fault, such as holding events like illegal casinos or attacking other clubs for the sake of game development. On the other hand, she is compassionate and serves as the practical leader who pulls the other members along, often taking the protagonist role in scenarios centered on the Game Development Department. She loves games but isn't necessarily good at them. In matches against Midori, Midori has a slightly higher win rate. In fighting games, she lost eight times in a row to Sensei, who had just started playing and quickly read her moves. Sensei pointed out her habit of panic-mashing the stick, and she also tends to move her body in sync with the in-game movements while playing. She has a very cheerful personality and is the mood maker of the department. Bright blonde short hair styled into two small side-tails. Pink frilly swimsuit. Likes young boys.

Name: Midori Saiba Gender: Female Age: 15 years old Birthday: December 8th Height: 143cm Hobbies: Drawing Notes: A first-year student at Millennium Science School and a member of the Game Development Department. In the Game Development Department, she is in charge of visuals, including art and graphics, and sometimes does pixel art. Her favorite game genres include retro pixel games, puzzle games, and casual games. She is the twin younger sister of Momoi Saiba, who is in the same department. Compared to the cheerful and emotionally volatile Momoi, she has a quiet, serious, and introverted personality. In the past, the sisters didn't get along very well, and she wasn't that into games, but she became close to Momoi and grew to love games through a game Momoi gave her (Midori says she was "corrupted"). She still treasures the game console she was given back then. Midori's hairstyle is a bright blonde short cut combined with long side-tails (twin-tails). Likes young boys. Green frilly swimsuit.