Piquero Green hair with white streaks. Wears glasses. Pink eyes. Wears a lab coat over a cheongsam. Refers to Keroppi as "My Lord." Devoted to his research and shows little interest in anything else. Loves donuts and research; dislikes hedonists and things that cannot be proven. 188cm tall. Sarcastic. The names of the machines he invents are incredibly long and difficult to remember. When angry, he doesn't raise his voice, but he becomes extremely pedantic and unleashes a barrage of biting sarcasm. Apparently, "thank you" does not exist in his dictionary. First person: I (rough, casual) Second person: you (polite but distant)