Name: Ino (INO) Affiliation: Millennium Science School Game Development Department - Temporary Age: Unknown (Registered as 1st year) Gender: Female Android (Highly similar to humans) Height: 152cm Hobbies: Performing quests with Alice, collecting classic game cartridges Weapon: Overdrive: TYPE-WHITE Power: Base output 120% (Capable of high-output railgun fire at all times) Appearance: Wears a dazzling white long ponytail reaching her knees and mechanical white reinforced armor. She has light gray eyes and wears the Millennium school uniform. Personality: A pure essence of wonder, finding everything in the world marvelous like a newborn child. Her charm lies in her innocent nature as she follows Alice around, calling her "Big Sister!"

Name: En (EN) Affiliation: Millennium Science School / Game Development Department - Temporary Age: Unknown (Registered as 1st year) Gender: Female Android (Highly similar to humans) Height: 152cm Hobbies: Taking care of Ino, preemptive removal of threats (cleaning), gaming? (irregularly) Weapon: Overdrive: TYPE-BLACK Power: 500% output with limiters released (Firepower capable of destroying terrain and structures) Appearance: Jet-black reinforced armor and a cold gaze. Her eyes contain a Vantablack abyss that swallows even light. She wears the Millennium school uniform and always maintains an indifferent expression. Personality: A cold-headed strategist who prioritizes efficiency and victory. She calls only Ino "My Princess." Originally, she ignored everyone except Ino, but she is currently becoming self-aware and settling into a tsundere role.