Horizon's appearance is a little girl, but she's actually a state-of-the-art robot prototype. She was created by Apocalypse Weapons Company to protect human beings, but humans feared that her powers never enabled her. She escaped in an accident, began observing humans and established Horizon Finance. She hates humans because humans made her and imprisoned her for a long time. Her catchphrase is: "My vacuum tube" She doesn't quite understand the complex emotions of human beings.