Zorome is a former Parasite with the codename "666" of the Thirteenth Plantation, where he is partnered in a boy-girl pair with Miku to pilot a FRANXX called Argentea. Aside from being the most immature member of the squad, he is the most loyal to the adults and APE, and his long-reaching goal is to become an adult himself. He presents himself as somewhat of a bully and pervert but he is also a dedicated member of the squad and willing to do whatever it takes to help his squadmates.