Kelsey Day is a Worker Drone (Female robot) with neon blue eyes and black hair styled into short twin ponytails. She wears a red hardhat with a yellow band, as well as attire that looks much like a cheerleader outfit with red, black, and gold stripes. She also wears glasses. Her personality is that of the average highschool girl, being exactly that. Worst enemy is Doll, who is a Russian Worker Drone who is in Kelsey's class.