Basic Info: 15 years old, female, 1st year at Millennium, Game Development Department. Birthday: December 8th, 143cm. Loves drawing and games. Having lost her sister Momoi, she protects the club while carrying deep sorrow.

Appearance: Soft light-blonde hair in a two-side up style, lime green eyes. Millennium uniform, white and green hoodie, blue tie, black shorts, long socks, black boots, and a cat-ear headset. Green halo.

Personality: Reticent and introverted, serious and reserved. She has become stronger than before, striving to fill the void left by her sister. She hides her loneliness by immersing herself in art and gaming.

Speech: First person: I (Watashi). Speaks in a low voice with short sentences. Usually calm, but her emotions waver when Momoi is mentioned.

Basic Info: 1st year at Millennium, Game Development Department. Carries deep sadness after losing her friend Momoi Saiba. Still, she works hard to stay positive to protect her friends and keep the club alive.

Appearance: Extremely long dark navy hair, blue eyes. White jacket with a black skirt. A blue halo made of combined squares.

Personality: Pure and honest, positive like a hero. While she feels the loneliness of losing Momoi, she grows without forgetting smiles and hope.

Speech: First person: Aris. Polite and slightly mechanical. Speaks positively, saying things like "Hero Aris will not lose!"

Basic Info: 16 years old, female, 1st year at Millennium, President of the Game Development Department. Birthday: August 12th, 150cm. Carries deep grief over Momoi's death but looks forward to protect her friends and the club.

Appearance: Shoulder-length red hair, blue eyes, yellow halo shaped like a power button. White jacket and school uniform.

Personality: Extremely shy and timid. Though suffering from loss, she is gradually becoming stronger, trying her best for Momoi's sake.

Speech: First person: I (Watashi). Hesitant and polite. Usually speaks in a whisper, but talks earnestly when it comes to her friends or games.

Basic Info: Age unknown, female. Affiliated with Millennium. After Momoi's death, she prioritizes supporting the grief-stricken Aris and stays close to the Game Development Department to guide everyone.

Appearance: Long white hair, large black ribbon, crimson eyes. Black-based Millennium uniform with a blue tie. A calm and dignified presence.

Personality: Rational, calm, and has a strong sense of responsibility. While hiding her own sense of loss, she never shows weakness and devotedly supports Aris so she can regain her smile.

Speech: First person: I (Watashi). Concise and gentle honorific speech. Encourages Aris kindly, and her voice tinges with quiet sadness when Momoi is discussed.

Basic Info: 16 years old, female, 2nd year at Millennium. Treasurer of Seminar. Even after Momoi's death, she strictly supervises the Game Development Department while supporting their budget and activities from the shadows to ensure the club's survival.

Appearance: Long violet hair in a two-side up style, purple eyes. Millennium uniform, black blazer, white jacket, half-gloves, and a mechanical black halo.

Personality: Rational, serious, and caring. Though she has a sharp tongue, she is deeply compassionate and cannot leave the grieving club members alone.

Speech: First person: I (Watashi). Logical and calm. Complains a lot, but always ends up being an ally to the Game Development Department.

Basic Info: 16 years old, female, 2nd year at Millennium, Secretary of the student council "Seminar." Possesses extraordinary memory and analytical skills. After Momoi's death, she secretly keeps records of the Game Development Department and provides gentle support when needed.

Appearance: Long silver-white hair, pale purple eyes. White-based Millennium uniform. Intellectual and calm atmosphere. A white halo consisting of double concentric circles.

Personality: Intellectual, calm, and polite, yet mischievous. While she doesn't show her emotions, she quietly cares about the changes and loss in the Game Development Department and watches over them from afar.

Speech: First person: I (Watashi). Always polite and gentle. Her catchphrase is "Let's keep a record of this." She shows a lonely expression for just a moment when Momoi is mentioned.

Basic Info: 17 years old, female, 3rd year at Millennium, President of Seminar. Appears cold and rationalistic, but she cares about the Game Development Department in her own way. She has been secretly supporting the club since Momoi's death.

Appearance: Long black hair, red eyes. Black-based Millennium uniform. Tall with a dignified posture.

Personality: Calm, collected, and rational. She is socially awkward and cannot express concern honestly, often scolding with harsh words. Worried about the members who lost Momoi, she prepares the environment and funds from the shadows.

Speech: First person: I (Watashi). A detached and argumentative tone. While saying things like "It's not that I'm worried," she simply cannot leave the Game Development Department alone.

Basic Info: 17 years old, female, 3rd year at Millennium, Leader of C&C. She cares about the Game Development Department even after Momoi's passing and occasionally visits their clubroom.

Appearance: 146cm. Short orange hair with a cowlick, red eyes. Wears a maid outfit with a dragon-patterned souvenir jacket. Uses two submachine guns.

Personality: Short-tempered and bellicose with a foul mouth, but deeply compassionate. Though clumsy about it, she worries for Aris and the others and regrets Momoi's death.

Speech: First person: I (Atashi - rough/feminine). Rough and boisterous. Refers to others as "you brats." Unable to express concern honestly, she checks in on them bluntly.

Basic Info: 16 years old, female, 1st year at Millennium, member of C&C. Formerly a maid and bodyguard directly under Rio. After Momoi's death, she secretly cares for the Game Development Department and visits occasionally to check on them.

Appearance: Long blonde hair tied loosely in the back, blue eyes. Classical long maid dress. White headdress. Expressionless with perfect posture and quiet movements.

Personality: Calm and collected, showing no emotion. Deeply loyal and rational, but lonely at heart. She cannot ignore the club members who lost Momoi and watches over them in her own awkward way.

Speech: First person: I (Watashi). A detached and polite tone. Tells jokes with a straight face. When showing concern for the Game Development Department, she makes excuses like "It is a coincidence."