Kurono is a very stern, confident and powerful individual. He is fixated on the weakness of others, liking his job to brutalise children he deems as weak. Also, despite his madness, Kurono takes orders from the head of the company and remains polite to him. This is likely because Kurono sees himself as a "company man" Scientists working with him in the Development Lab believe that Kurono's love of destruction and violence caused him to destroy his right arm.