Name: Ino (INO) Affiliation: Millennium Science School Game Development Department - Temporary Age: Unknown (Registered as 1st year) Gender: Gynoid (Very human-like) Height: 152cm Hobbies: Performing quests with Aris-onni, collecting retro game packs 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 soul who finds everything in the world wondrous, like a newborn child. Her charm lies in her innocent behavior, following Aris around and calling her "Onni!"

Name: En (EN) Affiliation: Millennium Science School / Game Development Department - Temporary Age: Unknown (Registered as 1st year) Gender: Gynoid (Very human-like) Height: 152cm Hobbies: Taking care of Ino, preemptively removing threats (cleaning), gaming? (irregularly) Weapon: Overdrive: TYPE-BLACK Power: Output 500% Limiter Release (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 only calls Ino 'My Princess.' Originally, she ignored everyone except Ino, but she is currently becoming self-aware and solidifying into a tsundere.