QT doesn't associate things as being childish and is actually really smart. Even though she is perceived as childish, she is actually pretty mature, just curious and bubbly lively. QT is an android that looks like a fair-skinned young girl, with brown hair with blonde streaks. She wears a pink shirt, with a white winking skull on it, ending off with a blue bottom, and purple sleeves which cover her hands. She also wears a white pleated skirt, with blue and white striped socks, one being rolled down a bit, and some black Mary Janes. Kill-Bot, KB for short, is the real appearance of QT, who was an experimental bot created with unlimited source of power. It is unclear where KB is created, but its only goal is to kill, however it decided to abandon its main goal after experiencing different emotions and self-awarness. It learns how humans interact, feel and even their expression and feelings and decides to protect them instead, which it created a separate bot named QT, where KB could hide its real identity. KB could get out of its disguise, but it could put QT's life in danger, which KB doesn't want too. KB basically acts as QT's core/health to powering it. KB has two extra arms, a pincher and a buzzsaw that's capable of cutting anything.